import{S as el,i as tl,s as ol,e as s,k as l,w as T,t as r,M as rl,c as a,d as o,m as c,a as i,x as y,h as n,b as d,G as e,g as m,y as b,q as v,o as M,B as k,v as nl,L as yi}from"../../chunks/vendor-hf-doc-builder.js";import{T as wi}from"../../chunks/Tip-hf-doc-builder.js";import{D as B}from"../../chunks/Docstring-hf-doc-builder.js";import{C as bi}from"../../chunks/CodeBlock-hf-doc-builder.js";import{I as fe}from"../../chunks/IconCopyLink-hf-doc-builder.js";import{E as Ti}from"../../chunks/ExampleCodeBlock-hf-doc-builder.js";function sl(C){let u,S,g,_,w;return{c(){u=s("p"),S=r("Although the recipe for forward pass needs to be defined within this function, one should call the "),g=s("code"),_=r("Module"),w=r(`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Although the recipe for forward pass needs to be defined within this function, one should call the "),g=a(f,"CODE",{});var F=i(g);_=n(F,"Module"),F.forEach(o),w=n(f,`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`),f.forEach(o)},m(h,f){m(h,u,f),e(u,S),e(u,g),e(g,_),e(u,w)},d(h){h&&o(u)}}}function al(C){let u,S,g,_,w;return _=new bi({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> transformers <span class="hljs-keyword">import</span> AutoTokenizer, SwitchTransformersModel

<span class="hljs-meta">&gt;&gt;&gt; </span>tokenizer = AutoTokenizer.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>model = SwitchTransformersModel.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)

<span class="hljs-meta">&gt;&gt;&gt; </span>input_ids = tokenizer(
<span class="hljs-meta">... </span>    <span class="hljs-string">&quot;Studies have been shown that owning a dog is good for you&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>
<span class="hljs-meta">... </span>).input_ids  <span class="hljs-comment"># Batch size 1</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>decoder_input_ids = tokenizer(<span class="hljs-string">&quot;Studies show that&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>).input_ids  <span class="hljs-comment"># Batch size 1</span>

<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># preprocess: Prepend decoder_input_ids with start token which is pad token for SwitchTransformersModel.</span>
<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># This is not needed for torch&#x27;s SwitchTransformersForConditionalGeneration as it does this internally using labels arg.</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>decoder_input_ids = model._shift_right(decoder_input_ids)

<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># forward pass</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>outputs = model(input_ids=input_ids, decoder_input_ids=decoder_input_ids)
<span class="hljs-meta">&gt;&gt;&gt; </span>last_hidden_states = outputs.last_hidden_state`}}),{c(){u=s("p"),S=r("Example:"),g=l(),T(_.$$.fragment)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Example:"),f.forEach(o),g=c(h),y(_.$$.fragment,h)},m(h,f){m(h,u,f),e(u,S),m(h,g,f),b(_,h,f),w=!0},p:yi,i(h){w||(v(_.$$.fragment,h),w=!0)},o(h){M(_.$$.fragment,h),w=!1},d(h){h&&o(u),h&&o(g),k(_,h)}}}function il(C){let u,S,g,_,w;return{c(){u=s("p"),S=r("Although the recipe for forward pass needs to be defined within this function, one should call the "),g=s("code"),_=r("Module"),w=r(`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Although the recipe for forward pass needs to be defined within this function, one should call the "),g=a(f,"CODE",{});var F=i(g);_=n(F,"Module"),F.forEach(o),w=n(f,`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`),f.forEach(o)},m(h,f){m(h,u,f),e(u,S),e(u,g),e(g,_),e(u,w)},d(h){h&&o(u)}}}function dl(C){let u,S,g,_,w;return _=new bi({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> transformers <span class="hljs-keyword">import</span> AutoTokenizer, SwitchTransformersForConditionalGeneration

<span class="hljs-meta">&gt;&gt;&gt; </span>tokenizer = AutoTokenizer.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>model = SwitchTransformersForConditionalGeneration.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)

<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># training</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>input_ids = tokenizer(<span class="hljs-string">&quot;The &lt;extra_id_0&gt; walks in &lt;extra_id_1&gt; park&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>).input_ids
<span class="hljs-meta">&gt;&gt;&gt; </span>labels = tokenizer(<span class="hljs-string">&quot;&lt;extra_id_0&gt; cute dog &lt;extra_id_1&gt; the &lt;extra_id_2&gt;&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>).input_ids
<span class="hljs-meta">&gt;&gt;&gt; </span>outputs = model(input_ids=input_ids, labels=labels)
<span class="hljs-meta">&gt;&gt;&gt; </span>loss = outputs.loss
<span class="hljs-meta">&gt;&gt;&gt; </span>logits = outputs.logits

<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># inference</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>input_ids = tokenizer(
<span class="hljs-meta">... </span>    <span class="hljs-string">&quot;summarize: studies have shown that owning a dog is good for you&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>
<span class="hljs-meta">... </span>).input_ids  <span class="hljs-comment"># Batch size 1</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>outputs = model.generate(input_ids)
<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># . To, let\u2019s say you have a dog. To summarize:</span>
<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-comment"># Since the model has been trained on MLM, this will output gibberish</span>`}}),{c(){u=s("p"),S=r("Examples:"),g=l(),T(_.$$.fragment)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Examples:"),f.forEach(o),g=c(h),y(_.$$.fragment,h)},m(h,f){m(h,u,f),e(u,S),m(h,g,f),b(_,h,f),w=!0},p:yi,i(h){w||(v(_.$$.fragment,h),w=!0)},o(h){M(_.$$.fragment,h),w=!1},d(h){h&&o(u),h&&o(g),k(_,h)}}}function ll(C){let u,S,g,_,w;return{c(){u=s("p"),S=r("Although the recipe for forward pass needs to be defined within this function, one should call the "),g=s("code"),_=r("Module"),w=r(`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Although the recipe for forward pass needs to be defined within this function, one should call the "),g=a(f,"CODE",{});var F=i(g);_=n(F,"Module"),F.forEach(o),w=n(f,`
instance afterwards instead of this since the former takes care of running the pre and post processing steps while
the latter silently ignores them.`),f.forEach(o)},m(h,f){m(h,u,f),e(u,S),e(u,g),e(g,_),e(u,w)},d(h){h&&o(u)}}}function cl(C){let u,S,g,_,w;return _=new bi({props:{code:"ZnJvbSUyMHRyYW5zZm9ybWVycyUyMGltcG9ydCUyMEF1dG9Ub2tlbml6ZXIlMkMlMjBTd2l0Y2hUcmFuc2Zvcm1lcnNFbmNvZGVyTW9kZWwlMEElMEF0b2tlbml6ZXIlMjAlM0QlMjBBdXRvVG9rZW5pemVyLmZyb21fcHJldHJhaW5lZCglMjJnb29nbGUlMkZzd2l0Y2gtYmFzZS04JTIyKSUwQW1vZGVsJTIwJTNEJTIwU3dpdGNoVHJhbnNmb3JtZXJzRW5jb2Rlck1vZGVsLmZyb21fcHJldHJhaW5lZCglMjJnb29nbGUlMkZzd2l0Y2gtYmFzZS04JTIyKSUwQWlucHV0X2lkcyUyMCUzRCUyMHRva2VuaXplciglMEElMjAlMjAlMjAlMjAlMjJTdHVkaWVzJTIwaGF2ZSUyMGJlZW4lMjBzaG93biUyMHRoYXQlMjBvd25pbmclMjBhJTIwZG9nJTIwaXMlMjBnb29kJTIwZm9yJTIweW91JTIyJTJDJTIwcmV0dXJuX3RlbnNvcnMlM0QlMjJwdCUyMiUwQSkuaW5wdXRfaWRzJTIwJTIwJTIzJTIwQmF0Y2glMjBzaXplJTIwMSUwQW91dHB1dHMlMjAlM0QlMjBtb2RlbChpbnB1dF9pZHMlM0RpbnB1dF9pZHMpJTBBbGFzdF9oaWRkZW5fc3RhdGVzJTIwJTNEJTIwb3V0cHV0cy5sYXN0X2hpZGRlbl9zdGF0ZQ==",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> transformers <span class="hljs-keyword">import</span> AutoTokenizer, SwitchTransformersEncoderModel

<span class="hljs-meta">&gt;&gt;&gt; </span>tokenizer = AutoTokenizer.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>model = SwitchTransformersEncoderModel.from_pretrained(<span class="hljs-string">&quot;google/switch-base-8&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>input_ids = tokenizer(
<span class="hljs-meta">... </span>    <span class="hljs-string">&quot;Studies have been shown that owning a dog is good for you&quot;</span>, return_tensors=<span class="hljs-string">&quot;pt&quot;</span>
<span class="hljs-meta">... </span>).input_ids  <span class="hljs-comment"># Batch size 1</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>outputs = model(input_ids=input_ids)
<span class="hljs-meta">&gt;&gt;&gt; </span>last_hidden_states = outputs.last_hidden_state`}}),{c(){u=s("p"),S=r("Example:"),g=l(),T(_.$$.fragment)},l(h){u=a(h,"P",{});var f=i(u);S=n(f,"Example:"),f.forEach(o),g=c(h),y(_.$$.fragment,h)},m(h,f){m(h,u,f),e(u,S),m(h,g,f),b(_,h,f),w=!0},p:yi,i(h){w||(v(_.$$.fragment,h),w=!0)},o(h){M(_.$$.fragment,h),w=!1},d(h){h&&o(u),h&&o(g),k(_,h)}}}function hl(C){let u,S,g,_,w,h,f,F,Or,rr,te,_e,uo,Ae,Vr,mo,Xr,nr,ge,Lr,Pe,Dr,Yr,sr,At,Qr,ar,Pt,Kr,ir,Gt,fo,en,dr,Bt,tn,lr,we,Ge,on,Ht,rn,nn,sn,Be,an,He,dn,ln,cr,j,cn,Oe,hn,pn,Ve,un,mn,Xe,fn,_n,hr,oe,Te,_o,Le,gn,go,wn,pr,ye,wo,Ot,Tn,yn,To,Vt,bn,ur,re,be,yo,De,vn,bo,Mn,mr,H,Ye,kn,ne,Sn,Xt,En,xn,Qe,$n,zn,Cn,se,Fn,Lt,Rn,In,Dt,Un,Jn,fr,ae,ve,vo,Ke,jn,Mo,qn,_r,z,et,Wn,ko,Nn,Zn,O,An,tt,Pn,Gn,ot,Bn,Hn,So,On,Vn,Xn,Me,rt,Ln,Eo,Dn,Yn,L,nt,Qn,ie,Kn,xo,es,ts,$o,os,rs,ns,R,ss,zo,as,is,Co,ds,ls,Fo,cs,hs,Ro,ps,us,gr,de,ke,Io,st,ms,Uo,fs,wr,V,at,_s,Jo,gs,ws,q,it,Ts,jo,ys,bs,X,vs,qo,Ms,ks,Wo,Ss,Es,No,xs,$s,zs,Zo,Cs,Tr,le,Se,Ao,dt,Fs,Po,Rs,yr,E,lt,Is,Go,Us,Js,I,js,ct,qs,Ws,ht,Ns,Zs,pt,As,Ps,ut,Gs,Bs,Hs,mt,Os,Yt,Vs,Xs,Ls,ft,Ds,_t,Ys,Qs,Ks,W,gt,ea,ce,ta,Qt,oa,ra,Bo,na,sa,aa,Ee,ia,xe,br,he,$e,Ho,wt,da,Oo,la,vr,x,Tt,ca,yt,ha,Vo,pa,ua,ma,U,fa,bt,_a,ga,vt,wa,Ta,Mt,ya,ba,kt,va,Ma,ka,St,Sa,Kt,Ea,xa,$a,Et,za,xt,Ca,Fa,Ra,N,$t,Ia,pe,Ua,eo,Ja,ja,Xo,qa,Wa,Na,ze,Za,Ce,Mr,ue,Fe,Lo,zt,Aa,Do,Pa,kr,$,Ct,Ga,Yo,Ba,Ha,J,Oa,Ft,Va,Xa,Rt,La,Da,It,Ya,Qa,Ut,Ka,ei,ti,Jt,oi,to,ri,ni,si,jt,ai,qt,ii,di,li,Z,Wt,ci,me,hi,oo,pi,ui,Qo,mi,fi,_i,Re,gi,Ie,Sr;return h=new fe({}),Ae=new fe({}),Le=new fe({}),De=new fe({}),Ye=new B({props:{name:"class transformers.SwitchTransformersConfig",anchor:"transformers.SwitchTransformersConfig",parameters:[{name:"vocab_size",val:" = 32128"},{name:"d_model",val:" = 768"},{name:"d_kv",val:" = 64"},{name:"d_ff",val:" = 2048"},{name:"expert_capacity",val:" = 64"},{name:"num_layers",val:" = 12"},{name:"num_sparse_encoder_layers",val:" = 3"},{name:"num_decoder_layers",val:" = 12"},{name:"num_sparse_decoder_layers",val:" = 3"},{name:"num_heads",val:" = 12"},{name:"num_experts",val:" = 8"},{name:"router_bias",val:" = False"},{name:"router_jitter_noise",val:" = 0.01"},{name:"router_dtype",val:" = 'float32'"},{name:"router_ignore_padding_tokens",val:" = False"},{name:"relative_attention_num_buckets",val:" = 32"},{name:"relative_attention_max_distance",val:" = 128"},{name:"dropout_rate",val:" = 0.1"},{name:"layer_norm_epsilon",val:" = 1e-06"},{name:"router_z_loss_coef",val:" = 0.001"},{name:"router_aux_loss_coef",val:" = 0.001"},{name:"initializer_factor",val:" = 1.0"},{name:"dense_act_fn",val:" = 'relu'"},{name:"is_encoder_decoder",val:" = True"},{name:"add_router_probs",val:" = False"},{name:"use_cache",val:" = True"},{name:"pad_token_id",val:" = 0"},{name:"eos_token_id",val:" = 1"},{name:"**kwargs",val:""}],parametersDescription:[{anchor:"transformers.SwitchTransformersConfig.vocab_size",description:`<strong>vocab_size</strong> (<code>int</code>, <em>optional</em>, defaults to 32128) &#x2014;
Vocabulary size of the SwitchTransformers model. Defines the number of different tokens that can be
represented by the <code>inputs_ids</code> passed when calling <a href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersModel">SwitchTransformersModel</a>.`,name:"vocab_size"},{anchor:"transformers.SwitchTransformersConfig.d_model",description:`<strong>d_model</strong> (<code>int</code>, <em>optional</em>, defaults to 512) &#x2014;
Size of the encoder layers and the pooler layer.`,name:"d_model"},{anchor:"transformers.SwitchTransformersConfig.d_kv",description:`<strong>d_kv</strong> (<code>int</code>, <em>optional</em>, defaults to 64) &#x2014;
Size of the key, query, value projections per attention head. <code>d_kv</code> has to be equal to <code>d_model // num_heads</code>.`,name:"d_kv"},{anchor:"transformers.SwitchTransformersConfig.d_ff",description:`<strong>d_ff</strong> (<code>int</code>, <em>optional</em>, defaults to 2048) &#x2014;
Size of the intermediate feed forward layer in each <code>SwitchTransformersBlock</code>.`,name:"d_ff"},{anchor:"transformers.SwitchTransformersConfig.expert_capacity",description:`<strong>expert_capacity</strong> (<code>int</code>, <em>optional</em>, defaults to 64) &#x2014;
Number of tokens that can be stored in each expert. If set to 1, the model will behave like a regular
Transformer.`,name:"expert_capacity"},{anchor:"transformers.SwitchTransformersConfig.num_layers",description:`<strong>num_layers</strong> (<code>int</code>, <em>optional</em>, defaults to 12) &#x2014;
Number of dense hidden layers in the Transformer encoder layer.`,name:"num_layers"},{anchor:"transformers.SwitchTransformersConfig.num_sparse_encoder_layers",description:`<strong>num_sparse_encoder_layers</strong> (<code>int</code>, <em>optional</em>, defaults to 6) &#x2014;
Number of sparse (MoE) dense hidden layers in the Transformer encoder layer.`,name:"num_sparse_encoder_layers"},{anchor:"transformers.SwitchTransformersConfig.num_decoder_layers",description:`<strong>num_decoder_layers</strong> (<code>int</code>, <em>optional</em>, defaults to 12) &#x2014;
Number of hidden layers in the Transformer decoder. Will use the same value as <code>num_layers</code> if not set.`,name:"num_decoder_layers"},{anchor:"transformers.SwitchTransformersConfig.num_sparse_decoder_layers",description:`<strong>num_sparse_decoder_layers</strong> (<code>int</code>, <em>optional</em>, defaults to 12) &#x2014;
Number of sparse (MoE) dense hidden layers in the Transformer decoder layer.`,name:"num_sparse_decoder_layers"},{anchor:"transformers.SwitchTransformersConfig.num_heads",description:`<strong>num_heads</strong> (<code>int</code>, <em>optional</em>, defaults to 8) &#x2014;
Number of attention heads for each attention layer in the Transformer encoder.`,name:"num_heads"},{anchor:"transformers.SwitchTransformersConfig.num_experts",description:`<strong>num_experts</strong> (<code>int</code>, <em>optional</em>, defaults to 8) &#x2014;
Number of experts for each SwitchTransformer layer.`,name:"num_experts"},{anchor:"transformers.SwitchTransformersConfig.router_type",description:"<strong>router_type</strong> (<code>str</code>, <em>optional</em>, defaults to <code>&quot;tokens_masked&quot;</code>) &#x2014;\nRouter type - choose between <code>&quot;tokens_masked&quot;, </code>&#x201C;tokens_scatter&#x201D;<code>and</code>&#x201C;experts_masked&#x201D;`.",name:"router_type"},{anchor:"transformers.SwitchTransformersConfig.router_bias",description:`<strong>router_bias</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>True</code>) &#x2014;
Whether to add a bias to the router.`,name:"router_bias"},{anchor:"transformers.SwitchTransformersConfig.router_jitter_noise",description:`<strong>router_jitter_noise</strong> (<code>float</code>, <em>optional</em>, defaults to 0.1) &#x2014;
Amount of noise to add to the router.`,name:"router_jitter_noise"},{anchor:"transformers.SwitchTransformersConfig.router_dtype",description:`<strong>router_dtype</strong> (<code>str</code>, <em>optional</em>, default to <code>&quot;float32&quot;</code>) &#x2014;
The <code>dtype</code> used for the routers. It is preferable to keep the <code>dtype</code> to <code>&quot;float32&quot;</code> as specified in the
<em>selective precision</em> discussion in <a href="https://arxiv.org/abs/2101.03961" rel="nofollow">the paper</a>.`,name:"router_dtype"},{anchor:"transformers.SwitchTransformersConfig.router_ignore_padding_tokens",description:`<strong>router_ignore_padding_tokens</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>False</code>) &#x2014;
Whether to ignore padding tokens when routing.`,name:"router_ignore_padding_tokens"},{anchor:"transformers.SwitchTransformersConfig.relative_attention_num_buckets",description:`<strong>relative_attention_num_buckets</strong> (<code>int</code>, <em>optional</em>, defaults to 32) &#x2014;
The number of buckets to use for each attention layer.`,name:"relative_attention_num_buckets"},{anchor:"transformers.SwitchTransformersConfig.relative_attention_max_distance",description:`<strong>relative_attention_max_distance</strong> (<code>int</code>, <em>optional</em>, defaults to 128) &#x2014;
The maximum distance of the longer sequences for the bucket separation.`,name:"relative_attention_max_distance"},{anchor:"transformers.SwitchTransformersConfig.dropout_rate",description:`<strong>dropout_rate</strong> (<code>float</code>, <em>optional</em>, defaults to 0.1) &#x2014;
The ratio for all dropout layers.`,name:"dropout_rate"},{anchor:"transformers.SwitchTransformersConfig.layer_norm_eps",description:`<strong>layer_norm_eps</strong> (<code>float</code>, <em>optional</em>, defaults to 1e-6) &#x2014;
The epsilon used by the layer normalization layers.`,name:"layer_norm_eps"},{anchor:"transformers.SwitchTransformersConfig.router_z_loss_coef",description:`<strong>router_z_loss_coef</strong> (<code>float</code>, <em>optional</em>, defaults to 0.001) &#x2014;
The z loss factor for the total loss.`,name:"router_z_loss_coef"},{anchor:"transformers.SwitchTransformersConfig.router_aux_loss_coef",description:`<strong>router_aux_loss_coef</strong> (<code>float</code>, <em>optional</em>, defaults to 0.001) &#x2014;
The aux loss factor for the total loss.`,name:"router_aux_loss_coef"},{anchor:"transformers.SwitchTransformersConfig.initializer_factor",description:`<strong>initializer_factor</strong> (<code>float</code>, <em>optional</em>, defaults to 1) &#x2014;
A factor for initializing all weight matrices (should be kept to 1, used internally for initialization
testing).`,name:"initializer_factor"},{anchor:"transformers.SwitchTransformersConfig.feed_forward_proj",description:`<strong>feed_forward_proj</strong> (<code>string</code>, <em>optional</em>, defaults to <code>&quot;relu&quot;</code>) &#x2014;
Type of feed forward layer to be used. Should be one of <code>&quot;relu&quot;</code> or <code>&quot;gated-gelu&quot;</code>. SwitchTransformersv1.1
uses the <code>&quot;gated-gelu&quot;</code> feed forward projection. Original SwitchTransformers uses <code>&quot;relu&quot;</code>.`,name:"feed_forward_proj"},{anchor:"transformers.SwitchTransformersConfig.add_router_probs",description:`<strong>add_router_probs</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>False</code>) &#x2014;
Whether to output router probabilities to compute router auxiliary loss.`,name:"add_router_probs"},{anchor:"transformers.SwitchTransformersConfig.use_cache",description:`<strong>use_cache</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>True</code>) &#x2014;
Whether or not the model should return the last key/values attentions (not used by all models).`,name:"use_cache"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/configuration_switch_transformers.py#L27"}}),Ke=new fe({}),et=new B({props:{name:"class transformers.SwitchTransformersTop1Router",anchor:"transformers.SwitchTransformersTop1Router",parameters:[{name:"config",val:": SwitchTransformersConfig"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L131"}}),rt=new B({props:{name:"_compute_router_probabilities",anchor:"transformers.SwitchTransformersTop1Router._compute_router_probabilities",parameters:[{name:"hidden_states",val:": Tensor"}],parametersDescription:[{anchor:"transformers.SwitchTransformersTop1Router._compute_router_probabilities.hidden_states",description:`<strong>hidden_states</strong> (<code>torch.Tensor</code>) &#x2014;
(batch_size, sequence_length, hidden_dim) from which router probabilities are computed.`,name:"hidden_states"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L151",returnDescription:`
<p>Tensor of shape (batch_size, sequence_length, num_experts) corresponding to the probabilities for each
token and expert. Used for routing tokens to experts.
router_logits (<code>torch.Tensor</code>):
Logits tensor of shape (batch_size, sequence_length, num_experts) corresponding to raw router logits.
This is used later for computing router z-loss.</p>
`,returnType:`
<p>router_probabilities (<code>torch.Tensor</code>)</p>
`}}),nt=new B({props:{name:"forward",anchor:"transformers.SwitchTransformersTop1Router.forward",parameters:[{name:"hidden_states",val:": Tensor"}],parametersDescription:[{anchor:"transformers.SwitchTransformersTop1Router.forward.hidden_states",description:`<strong>hidden_states</strong> (<code>torch.Tensor</code>)  &#x2014;
[num_groups, tokens_per_group, hidden_dim] inputs to send to experts.`,name:"hidden_states"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L201",returnDescription:`
<p>Tuple[<code>torch.Tensor</code>, <code>torch.Tensor</code>, <code>torch.Tensor</code>] Tuple containing the expert index, the router probs
and the router logits. The router probabilities and logits are required to compute the loss.</p>
`}}),st=new fe({}),at=new B({props:{name:"class transformers.SwitchTransformersSparseMLP",anchor:"transformers.SwitchTransformersSparseMLP",parameters:[{name:"config",val:": SwitchTransformersConfig"},{name:"expert_class",val:": Module = <class 'transformers.models.switch_transformers.modeling_switch_transformers.SwitchTransformersDenseActDense'>"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L285"}}),it=new B({props:{name:"forward",anchor:"transformers.SwitchTransformersSparseMLP.forward",parameters:[{name:"hidden_states",val:""}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L300"}}),dt=new fe({}),lt=new B({props:{name:"class transformers.SwitchTransformersModel",anchor:"transformers.SwitchTransformersModel",parameters:[{name:"config",val:": SwitchTransformersConfig"}],parametersDescription:[{anchor:"transformers.SwitchTransformersModel.config",description:`<strong>config</strong> (<a href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig">SwitchTransformersConfig</a>) &#x2014; Model configuration class with all the parameters of the model.
Initializing with a config file does not load the weights associated with the model, only the
configuration. Check out the <a href="/docs/transformers/v4.32.0/en/main_classes/model#transformers.PreTrainedModel.from_pretrained">from_pretrained()</a> method to load the model weights.`,name:"config"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1310"}}),gt=new B({props:{name:"forward",anchor:"transformers.SwitchTransformersModel.forward",parameters:[{name:"input_ids",val:": typing.Optional[torch.LongTensor] = None"},{name:"attention_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"decoder_input_ids",val:": typing.Optional[torch.LongTensor] = None"},{name:"decoder_attention_mask",val:": typing.Optional[torch.BoolTensor] = None"},{name:"head_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"decoder_head_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"cross_attn_head_mask",val:": typing.Optional[torch.Tensor] = None"},{name:"encoder_outputs",val:": typing.Optional[typing.Tuple[typing.Tuple[torch.FloatTensor]]] = None"},{name:"past_key_values",val:": typing.Optional[typing.Tuple[typing.Tuple[torch.FloatTensor]]] = None"},{name:"inputs_embeds",val:": typing.Optional[torch.Tensor] = None"},{name:"decoder_inputs_embeds",val:": typing.Optional[torch.Tensor] = None"},{name:"use_cache",val:": typing.Optional[bool] = None"},{name:"output_attentions",val:": typing.Optional[bool] = None"},{name:"output_hidden_states",val:": typing.Optional[bool] = None"},{name:"output_router_logits",val:": typing.Optional[bool] = None"},{name:"return_dict",val:": typing.Optional[bool] = None"}],parametersDescription:[{anchor:"transformers.SwitchTransformersModel.forward.input_ids",description:`<strong>input_ids</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size, sequence_length)</code>) &#x2014;
Indices of input sequence tokens in the vocabulary. SWITCH_TRANSFORMERS is a model with relative position
embeddings so you should be able to pad the inputs on both the right and the left.</p>
<p>Indices can be obtained using <a href="/docs/transformers/v4.32.0/en/model_doc/auto#transformers.AutoTokenizer">AutoTokenizer</a>. See <a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.encode">PreTrainedTokenizer.encode()</a> and
<a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__">PreTrainedTokenizer.<strong>call</strong>()</a> for detail.</p>
<p><a href="../glossary#input-ids">What are input IDs?</a></p>
<p>To know more on how to prepare <code>input_ids</code> for pretraining take a look a <a href="./switch_transformers#training">SWITCH_TRANSFORMERS
Training</a>.`,name:"input_ids"},{anchor:"transformers.SwitchTransformersModel.forward.attention_mask",description:`<strong>attention_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length)</code>, <em>optional</em>) &#x2014;
Mask to avoid performing attention on padding token indices. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 for tokens that are <strong>not masked</strong>,</li>
<li>0 for tokens that are <strong>masked</strong>.</li>
</ul>
<p><a href="../glossary#attention-mask">What are attention masks?</a>`,name:"attention_mask"},{anchor:"transformers.SwitchTransformersModel.forward.decoder_input_ids",description:`<strong>decoder_input_ids</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size, target_sequence_length)</code>, <em>optional</em>) &#x2014;
Indices of decoder input sequence tokens in the vocabulary.</p>
<p>Indices can be obtained using <a href="/docs/transformers/v4.32.0/en/model_doc/auto#transformers.AutoTokenizer">AutoTokenizer</a>. See <a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.encode">PreTrainedTokenizer.encode()</a> and
<a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__">PreTrainedTokenizer.<strong>call</strong>()</a> for details.</p>
<p><a href="../glossary#decoder-input-ids">What are decoder input IDs?</a></p>
<p>SWITCH_TRANSFORMERS uses the <code>pad_token_id</code> as the starting token for <code>decoder_input_ids</code> generation. If
<code>past_key_values</code> is used, optionally only the last <code>decoder_input_ids</code> have to be input (see
<code>past_key_values</code>).</p>
<p>To know more on how to prepare <code>decoder_input_ids</code> for pretraining take a look at <a href="./switch_transformers#training">SWITCH_TRANSFORMERS
Training</a>.`,name:"decoder_input_ids"},{anchor:"transformers.SwitchTransformersModel.forward.decoder_attention_mask",description:`<strong>decoder_attention_mask</strong> (<code>torch.BoolTensor</code> of shape <code>(batch_size, target_sequence_length)</code>, <em>optional</em>) &#x2014;
Default behavior: generate a tensor that ignores pad tokens in <code>decoder_input_ids</code>. Causal mask will also
be used by default.`,name:"decoder_attention_mask"},{anchor:"transformers.SwitchTransformersModel.forward.head_mask",description:`<strong>head_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the self-attention modules in the encoder. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"head_mask"},{anchor:"transformers.SwitchTransformersModel.forward.decoder_head_mask",description:`<strong>decoder_head_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the self-attention modules in the decoder. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"decoder_head_mask"},{anchor:"transformers.SwitchTransformersModel.forward.cross_attn_head_mask",description:`<strong>cross_attn_head_mask</strong> (<code>torch.Tensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the cross-attention modules in the decoder. Mask values selected in
<code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"cross_attn_head_mask"},{anchor:"transformers.SwitchTransformersModel.forward.encoder_outputs",description:`<strong>encoder_outputs</strong> (<code>tuple(tuple(torch.FloatTensor)</code>, <em>optional</em>) &#x2014;
Tuple consists of (<code>last_hidden_state</code>, <code>optional</code>: <em>hidden_states</em>, <code>optional</code>: <em>attentions</em>)
<code>last_hidden_state</code> of shape <code>(batch_size, sequence_length, hidden_size)</code> is a sequence of hidden states at
the output of the last layer of the encoder. Used in the cross-attention of the decoder.`,name:"encoder_outputs"},{anchor:"transformers.SwitchTransformersModel.forward.past_key_values",description:`<strong>past_key_values</strong> (<code>tuple(tuple(torch.FloatTensor))</code> of length <code>config.n_layers</code> with each tuple having 4 tensors of shape <code>(batch_size, num_heads, sequence_length - 1, embed_size_per_head)</code>) &#x2014;
Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding.</p>
<p>If <code>past_key_values</code> are used, the user can optionally input only the last <code>decoder_input_ids</code> (those that
don&#x2019;t have their past key value states given to this model) of shape <code>(batch_size, 1)</code> instead of all
<code>decoder_input_ids</code> of shape <code>(batch_size, sequence_length)</code>.`,name:"past_key_values"},{anchor:"transformers.SwitchTransformersModel.forward.inputs_embeds",description:`<strong>inputs_embeds</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>, <em>optional</em>) &#x2014;
Optionally, instead of passing <code>input_ids</code> you can choose to directly pass an embedded representation. This
is useful if you want more control over how to convert <code>input_ids</code> indices into associated vectors than the
model&#x2019;s internal embedding lookup matrix.`,name:"inputs_embeds"},{anchor:"transformers.SwitchTransformersModel.forward.decoder_inputs_embeds",description:`<strong>decoder_inputs_embeds</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, target_sequence_length, hidden_size)</code>, <em>optional</em>) &#x2014;
Optionally, instead of passing <code>decoder_input_ids</code> you can choose to directly pass an embedded
representation. If <code>past_key_values</code> is used, optionally only the last <code>decoder_inputs_embeds</code> have to be
input (see <code>past_key_values</code>). This is useful if you want more control over how to convert
<code>decoder_input_ids</code> indices into associated vectors than the model&#x2019;s internal embedding lookup matrix.</p>
<p>If <code>decoder_input_ids</code> and <code>decoder_inputs_embeds</code> are both unset, <code>decoder_inputs_embeds</code> takes the value
of <code>inputs_embeds</code>.`,name:"decoder_inputs_embeds"},{anchor:"transformers.SwitchTransformersModel.forward.use_cache",description:`<strong>use_cache</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
If set to <code>True</code>, <code>past_key_values</code> key value states are returned and can be used to speed up decoding (see
<code>past_key_values</code>).`,name:"use_cache"},{anchor:"transformers.SwitchTransformersModel.forward.output_attentions",description:`<strong>output_attentions</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the attentions tensors of all attention layers. See <code>attentions</code> under returned
tensors for more detail.`,name:"output_attentions"},{anchor:"transformers.SwitchTransformersModel.forward.output_hidden_states",description:`<strong>output_hidden_states</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the hidden states of all layers. See <code>hidden_states</code> under returned tensors for
more detail.`,name:"output_hidden_states"},{anchor:"transformers.SwitchTransformersModel.forward.output_router_logits",description:`<strong>output_router_logits</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the logits of all the routers. They are useful for computing the router loss, and
should not be returned during inference.`,name:"output_router_logits"},{anchor:"transformers.SwitchTransformersModel.forward.return_dict",description:`<strong>return_dict</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return a <a href="/docs/transformers/v4.32.0/en/main_classes/output#transformers.utils.ModelOutput">ModelOutput</a> instead of a plain tuple.`,name:"return_dict"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1356",returnDescription:`
<p>A <code>transformers.modeling_outputs.Seq2SeqMoEModelOutput</code> or a tuple of
<code>torch.FloatTensor</code> (if <code>return_dict=False</code> is passed or when <code>config.return_dict=False</code>) comprising various
elements depending on the configuration (<a
  href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig"
>SwitchTransformersConfig</a>) and inputs.</p>
<ul>
<li>
<p><strong>last_hidden_state</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>) \u2014 Sequence of hidden-states at the output of the last layer of the decoder of the model.</p>
<p>If <code>past_key_values</code> is used only the last hidden-state of the sequences of shape <code>(batch_size, 1, hidden_size)</code> is output.</p>
</li>
<li>
<p><strong>past_key_values</strong> (<code>tuple(tuple(torch.FloatTensor))</code>, <em>optional</em>, returned when <code>use_cache=True</code> is passed or when <code>config.use_cache=True</code>) \u2014 Tuple of <code>tuple(torch.FloatTensor)</code> of length <code>config.n_layers</code>, with each tuple having 2 tensors of shape
<code>(batch_size, num_heads, sequence_length, embed_size_per_head)</code>) and 2 additional tensors of shape
<code>(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)</code>.</p>
<p>Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see <code>past_key_values</code> input) to speed up sequential decoding.</p>
</li>
<li>
<p><strong>decoder_hidden_states</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_hidden_states=True</code> is passed or when <code>config.output_hidden_states=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for the output of the embeddings, if the model has an embedding layer, +
one for the output of each layer) of shape <code>(batch_size, sequence_length, hidden_size)</code>.</p>
<p>Hidden-states of the decoder at the output of each layer plus the optional initial embedding outputs.</p>
</li>
<li>
<p><strong>decoder_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.</p>
</li>
<li>
<p><strong>decoder_router_logits</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_router_logits=True</code> is passed or when <code>config.add_router_probs=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, sequence_length, num_experts)</code>.</p>
<p>Router logits of the decoder model, useful to compute the auxiliary loss for Mixture of Experts models.</p>
</li>
<li>
<p><strong>cross_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the decoder\u2019s cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.</p>
</li>
<li>
<p><strong>encoder_last_hidden_state</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>, <em>optional</em>) \u2014 Sequence of hidden-states at the output of the last layer of the encoder of the model.</p>
</li>
<li>
<p><strong>encoder_hidden_states</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_hidden_states=True</code> is passed or when <code>config.output_hidden_states=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for the output of the embeddings, if the model has an embedding layer, +
one for the output of each layer) of shape <code>(batch_size, sequence_length, hidden_size)</code>.</p>
<p>Hidden-states of the encoder at the output of each layer plus the optional initial embedding outputs.</p>
</li>
<li>
<p><strong>encoder_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.</p>
</li>
<li>
<p><strong>encoder_router_logits</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_router_logits=True</code> is passed or when <code>config.add_router_probs=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, sequence_length, num_experts)</code>.</p>
<p>Router logits of the encoder model, useful to compute the auxiliary loss and the z_loss for the sparse
modules.</p>
</li>
</ul>
`,returnType:`
<p><code>transformers.modeling_outputs.Seq2SeqMoEModelOutput</code> or <code>tuple(torch.FloatTensor)</code></p>
`}}),Ee=new wi({props:{$$slots:{default:[sl]},$$scope:{ctx:C}}}),xe=new Ti({props:{anchor:"transformers.SwitchTransformersModel.forward.example",$$slots:{default:[al]},$$scope:{ctx:C}}}),wt=new fe({}),Tt=new B({props:{name:"class transformers.SwitchTransformersForConditionalGeneration",anchor:"transformers.SwitchTransformersForConditionalGeneration",parameters:[{name:"config",val:": SwitchTransformersConfig"}],parametersDescription:[{anchor:"transformers.SwitchTransformersForConditionalGeneration.config",description:`<strong>config</strong> (<a href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig">SwitchTransformersConfig</a>) &#x2014; Model configuration class with all the parameters of the model.
Initializing with a config file does not load the weights associated with the model, only the
configuration. Check out the <a href="/docs/transformers/v4.32.0/en/main_classes/model#transformers.PreTrainedModel.from_pretrained">from_pretrained()</a> method to load the model weights.`,name:"config"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1478"}}),$t=new B({props:{name:"forward",anchor:"transformers.SwitchTransformersForConditionalGeneration.forward",parameters:[{name:"input_ids",val:": typing.Optional[torch.LongTensor] = None"},{name:"attention_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"decoder_input_ids",val:": typing.Optional[torch.LongTensor] = None"},{name:"decoder_attention_mask",val:": typing.Optional[torch.BoolTensor] = None"},{name:"head_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"decoder_head_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"cross_attn_head_mask",val:": typing.Optional[torch.Tensor] = None"},{name:"encoder_outputs",val:": typing.Optional[typing.Tuple[typing.Tuple[torch.Tensor]]] = None"},{name:"past_key_values",val:": typing.Optional[typing.Tuple[typing.Tuple[torch.Tensor]]] = None"},{name:"inputs_embeds",val:": typing.Optional[torch.FloatTensor] = None"},{name:"decoder_inputs_embeds",val:": typing.Optional[torch.FloatTensor] = None"},{name:"labels",val:": typing.Optional[torch.LongTensor] = None"},{name:"use_cache",val:": typing.Optional[bool] = None"},{name:"output_attentions",val:": typing.Optional[bool] = None"},{name:"output_hidden_states",val:": typing.Optional[bool] = None"},{name:"output_router_logits",val:": typing.Optional[bool] = True"},{name:"return_dict",val:": typing.Optional[bool] = None"}],parametersDescription:[{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.input_ids",description:`<strong>input_ids</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size, sequence_length)</code>) &#x2014;
Indices of input sequence tokens in the vocabulary. SWITCH_TRANSFORMERS is a model with relative position
embeddings so you should be able to pad the inputs on both the right and the left.</p>
<p>Indices can be obtained using <a href="/docs/transformers/v4.32.0/en/model_doc/auto#transformers.AutoTokenizer">AutoTokenizer</a>. See <a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.encode">PreTrainedTokenizer.encode()</a> and
<a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__">PreTrainedTokenizer.<strong>call</strong>()</a> for detail.</p>
<p><a href="../glossary#input-ids">What are input IDs?</a></p>
<p>To know more on how to prepare <code>input_ids</code> for pretraining take a look a <a href="./switch_transformers#training">SWITCH_TRANSFORMERS
Training</a>.`,name:"input_ids"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.attention_mask",description:`<strong>attention_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length)</code>, <em>optional</em>) &#x2014;
Mask to avoid performing attention on padding token indices. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 for tokens that are <strong>not masked</strong>,</li>
<li>0 for tokens that are <strong>masked</strong>.</li>
</ul>
<p><a href="../glossary#attention-mask">What are attention masks?</a>`,name:"attention_mask"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.decoder_input_ids",description:`<strong>decoder_input_ids</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size, target_sequence_length)</code>, <em>optional</em>) &#x2014;
Indices of decoder input sequence tokens in the vocabulary.</p>
<p>Indices can be obtained using <a href="/docs/transformers/v4.32.0/en/model_doc/auto#transformers.AutoTokenizer">AutoTokenizer</a>. See <a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.encode">PreTrainedTokenizer.encode()</a> and
<a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__">PreTrainedTokenizer.<strong>call</strong>()</a> for details.</p>
<p><a href="../glossary#decoder-input-ids">What are decoder input IDs?</a></p>
<p>SWITCH_TRANSFORMERS uses the <code>pad_token_id</code> as the starting token for <code>decoder_input_ids</code> generation. If
<code>past_key_values</code> is used, optionally only the last <code>decoder_input_ids</code> have to be input (see
<code>past_key_values</code>).</p>
<p>To know more on how to prepare <code>decoder_input_ids</code> for pretraining take a look at <a href="./switch_transformers#training">SWITCH_TRANSFORMERS
Training</a>.`,name:"decoder_input_ids"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.decoder_attention_mask",description:`<strong>decoder_attention_mask</strong> (<code>torch.BoolTensor</code> of shape <code>(batch_size, target_sequence_length)</code>, <em>optional</em>) &#x2014;
Default behavior: generate a tensor that ignores pad tokens in <code>decoder_input_ids</code>. Causal mask will also
be used by default.`,name:"decoder_attention_mask"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.head_mask",description:`<strong>head_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the self-attention modules in the encoder. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"head_mask"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.decoder_head_mask",description:`<strong>decoder_head_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the self-attention modules in the decoder. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"decoder_head_mask"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.cross_attn_head_mask",description:`<strong>cross_attn_head_mask</strong> (<code>torch.Tensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the cross-attention modules in the decoder. Mask values selected in
<code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"cross_attn_head_mask"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.encoder_outputs",description:`<strong>encoder_outputs</strong> (<code>tuple(tuple(torch.FloatTensor)</code>, <em>optional</em>) &#x2014;
Tuple consists of (<code>last_hidden_state</code>, <code>optional</code>: <em>hidden_states</em>, <code>optional</code>: <em>attentions</em>)
<code>last_hidden_state</code> of shape <code>(batch_size, sequence_length, hidden_size)</code> is a sequence of hidden states at
the output of the last layer of the encoder. Used in the cross-attention of the decoder.`,name:"encoder_outputs"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.past_key_values",description:`<strong>past_key_values</strong> (<code>tuple(tuple(torch.FloatTensor))</code> of length <code>config.n_layers</code> with each tuple having 4 tensors of shape <code>(batch_size, num_heads, sequence_length - 1, embed_size_per_head)</code>) &#x2014;
Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding.</p>
<p>If <code>past_key_values</code> are used, the user can optionally input only the last <code>decoder_input_ids</code> (those that
don&#x2019;t have their past key value states given to this model) of shape <code>(batch_size, 1)</code> instead of all
<code>decoder_input_ids</code> of shape <code>(batch_size, sequence_length)</code>.`,name:"past_key_values"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.inputs_embeds",description:`<strong>inputs_embeds</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>, <em>optional</em>) &#x2014;
Optionally, instead of passing <code>input_ids</code> you can choose to directly pass an embedded representation. This
is useful if you want more control over how to convert <code>input_ids</code> indices into associated vectors than the
model&#x2019;s internal embedding lookup matrix.`,name:"inputs_embeds"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.decoder_inputs_embeds",description:`<strong>decoder_inputs_embeds</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, target_sequence_length, hidden_size)</code>, <em>optional</em>) &#x2014;
Optionally, instead of passing <code>decoder_input_ids</code> you can choose to directly pass an embedded
representation. If <code>past_key_values</code> is used, optionally only the last <code>decoder_inputs_embeds</code> have to be
input (see <code>past_key_values</code>). This is useful if you want more control over how to convert
<code>decoder_input_ids</code> indices into associated vectors than the model&#x2019;s internal embedding lookup matrix.</p>
<p>If <code>decoder_input_ids</code> and <code>decoder_inputs_embeds</code> are both unset, <code>decoder_inputs_embeds</code> takes the value
of <code>inputs_embeds</code>.`,name:"decoder_inputs_embeds"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.use_cache",description:`<strong>use_cache</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
If set to <code>True</code>, <code>past_key_values</code> key value states are returned and can be used to speed up decoding (see
<code>past_key_values</code>).`,name:"use_cache"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.output_attentions",description:`<strong>output_attentions</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the attentions tensors of all attention layers. See <code>attentions</code> under returned
tensors for more detail.`,name:"output_attentions"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.output_hidden_states",description:`<strong>output_hidden_states</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the hidden states of all layers. See <code>hidden_states</code> under returned tensors for
more detail.`,name:"output_hidden_states"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.output_router_logits",description:`<strong>output_router_logits</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the logits of all the routers. They are useful for computing the router loss, and
should not be returned during inference.`,name:"output_router_logits"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.return_dict",description:`<strong>return_dict</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return a <a href="/docs/transformers/v4.32.0/en/main_classes/output#transformers.utils.ModelOutput">ModelOutput</a> instead of a plain tuple.`,name:"return_dict"},{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.labels",description:`<strong>labels</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size,)</code>, <em>optional</em>) &#x2014;
Labels for computing the sequence classification/regression loss. Indices should be in <code>[-100, 0, ..., config.vocab_size - 1]</code>. All labels set to <code>-100</code> are ignored (masked), the loss is only computed for
labels in <code>[0, ..., config.vocab_size]</code>`,name:"labels"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1530",returnDescription:`
<p>A <code>transformers.modeling_outputs.Seq2SeqMoEOutput</code> or a tuple of
<code>torch.FloatTensor</code> (if <code>return_dict=False</code> is passed or when <code>config.return_dict=False</code>) comprising various
elements depending on the configuration (<a
  href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig"
>SwitchTransformersConfig</a>) and inputs.</p>
<ul>
<li>
<p><strong>loss</strong> (<code>torch.FloatTensor</code> of shape <code>(1,)</code>, <em>optional</em>, returned when <code>labels</code> is provided) \u2014 Language modeling loss.</p>
</li>
<li>
<p><strong>logits</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, config.vocab_size)</code>) \u2014 Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).</p>
</li>
<li>
<p><strong>past_key_values</strong> (<code>tuple(tuple(torch.FloatTensor))</code>, <em>optional</em>, returned when <code>use_cache=True</code> is passed or when <code>config.use_cache=True</code>) \u2014 Tuple of <code>tuple(torch.FloatTensor)</code> of length <code>config.n_layers</code>, with each tuple having 2 tensors of shape
<code>(batch_size, num_heads, sequence_length, embed_size_per_head)</code>) and 2 additional tensors of shape
<code>(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)</code>.</p>
<p>Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see <code>past_key_values</code> input) to speed up sequential decoding.</p>
</li>
<li>
<p><strong>decoder_hidden_states</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_hidden_states=True</code> is passed or when <code>config.output_hidden_states=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for the output of the embeddings, if the model has an embedding layer, +
one for the output of each layer) of shape <code>(batch_size, sequence_length, hidden_size)</code>.</p>
<p>Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.</p>
</li>
<li>
<p><strong>decoder_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.</p>
</li>
<li>
<p><strong>decoder_router_logits</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_router_logits=True</code> is passed or when <code>config.add_router_probs=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, sequence_length, num_experts)</code>.</p>
<p>Router logits of the decoder model, useful to compute the auxiliary loss for Mixture of Experts models.</p>
</li>
<li>
<p><strong>cross_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the decoder\u2019s cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.</p>
</li>
<li>
<p><strong>encoder_last_hidden_state</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>, <em>optional</em>) \u2014 Sequence of hidden-states at the output of the last layer of the encoder of the model.</p>
</li>
<li>
<p><strong>encoder_hidden_states</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_hidden_states=True</code> is passed or when <code>config.output_hidden_states=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for the output of the embeddings, if the model has an embedding layer, +
one for the output of each layer) of shape <code>(batch_size, sequence_length, hidden_size)</code>.</p>
<p>Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.</p>
</li>
<li>
<p><strong>encoder_attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.</p>
</li>
<li>
<p><strong>encoder_router_logits</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_router_logits=True</code> is passed or when <code>config.add_router_probs=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, sequence_length, num_experts)</code>.</p>
<p>Router logits of the encoder model, useful to compute the auxiliary loss and z_loss for Mixture of Experts
models.</p>
</li>
</ul>
`,returnType:`
<p><code>transformers.modeling_outputs.Seq2SeqMoEOutput</code> or <code>tuple(torch.FloatTensor)</code></p>
`}}),ze=new wi({props:{$$slots:{default:[il]},$$scope:{ctx:C}}}),Ce=new Ti({props:{anchor:"transformers.SwitchTransformersForConditionalGeneration.forward.example",$$slots:{default:[dl]},$$scope:{ctx:C}}}),zt=new fe({}),Ct=new B({props:{name:"class transformers.SwitchTransformersEncoderModel",anchor:"transformers.SwitchTransformersEncoderModel",parameters:[{name:"config",val:": SwitchTransformersConfig"}],parametersDescription:[{anchor:"transformers.SwitchTransformersEncoderModel.config",description:`<strong>config</strong> (<a href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig">SwitchTransformersConfig</a>) &#x2014; Model configuration class with all the parameters of the model.
Initializing with a config file does not load the weights associated with the model, only the
configuration. Check out the <a href="/docs/transformers/v4.32.0/en/main_classes/model#transformers.PreTrainedModel.from_pretrained">from_pretrained()</a> method to load the model weights.`,name:"config"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1786"}}),Wt=new B({props:{name:"forward",anchor:"transformers.SwitchTransformersEncoderModel.forward",parameters:[{name:"input_ids",val:": typing.Optional[torch.LongTensor] = None"},{name:"attention_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"head_mask",val:": typing.Optional[torch.FloatTensor] = None"},{name:"inputs_embeds",val:": typing.Optional[torch.FloatTensor] = None"},{name:"output_attentions",val:": typing.Optional[bool] = None"},{name:"output_hidden_states",val:": typing.Optional[bool] = None"},{name:"output_router_logits",val:": typing.Optional[bool] = True"},{name:"return_dict",val:": typing.Optional[bool] = None"}],parametersDescription:[{anchor:"transformers.SwitchTransformersEncoderModel.forward.input_ids",description:`<strong>input_ids</strong> (<code>torch.LongTensor</code> of shape <code>(batch_size, sequence_length)</code>) &#x2014;
Indices of input sequence tokens in the vocabulary. SWITCH_TRANSFORMERS is a model with relative position
embeddings so you should be able to pad the inputs on both the right and the left.</p>
<p>Indices can be obtained using <a href="/docs/transformers/v4.32.0/en/model_doc/auto#transformers.AutoTokenizer">AutoTokenizer</a>. See <a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.encode">PreTrainedTokenizer.encode()</a> and
<a href="/docs/transformers/v4.32.0/en/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__">PreTrainedTokenizer.<strong>call</strong>()</a> for detail.</p>
<p>To know more on how to prepare <code>input_ids</code> for pretraining take a look a <a href="./switch_transformers#training">SWITCH_TRANSFORMERS
Training</a>.`,name:"input_ids"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.attention_mask",description:`<strong>attention_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length)</code>, <em>optional</em>) &#x2014;
Mask to avoid performing attention on padding token indices. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 for tokens that are <strong>not masked</strong>,</li>
<li>0 for tokens that are <strong>masked</strong>.</li>
</ul>
<p><a href="../glossary#attention-mask">What are attention masks?</a>`,name:"attention_mask"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.head_mask",description:`<strong>head_mask</strong> (<code>torch.FloatTensor</code> of shape <code>(num_heads,)</code> or <code>(num_layers, num_heads)</code>, <em>optional</em>) &#x2014;
Mask to nullify selected heads of the self-attention modules. Mask values selected in <code>[0, 1]</code>:</p>
<ul>
<li>1 indicates the head is <strong>not masked</strong>,</li>
<li>0 indicates the head is <strong>masked</strong>.</li>
</ul>`,name:"head_mask"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.inputs_embeds",description:`<strong>inputs_embeds</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>, <em>optional</em>) &#x2014;
Optionally, instead of passing <code>input_ids</code> you can choose to directly pass an embedded representation. This
is useful if you want more control over how to convert <code>input_ids</code> indices into associated vectors than the
model&#x2019;s internal embedding lookup matrix.`,name:"inputs_embeds"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.output_attentions",description:`<strong>output_attentions</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the attentions tensors of all attention layers. See <code>attentions</code> under returned
tensors for more detail.`,name:"output_attentions"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.output_hidden_states",description:`<strong>output_hidden_states</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the hidden states of all layers. See <code>hidden_states</code> under returned tensors for
more detail.`,name:"output_hidden_states"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.output_router_logits",description:`<strong>output_router_logits</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return the logits of all the routers. They are useful for computing the router loss, and
should not be returned during inference.`,name:"output_router_logits"},{anchor:"transformers.SwitchTransformersEncoderModel.forward.return_dict",description:`<strong>return_dict</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether or not to return a <a href="/docs/transformers/v4.32.0/en/main_classes/output#transformers.utils.ModelOutput">ModelOutput</a> instead of a plain tuple.`,name:"return_dict"}],source:"https://github.com/huggingface/transformers/blob/v4.32.0/src/transformers/models/switch_transformers/modeling_switch_transformers.py#L1822",returnDescription:`
<p>A <code>transformers.modeling_outputs.MoEModelOutput</code> or a tuple of
<code>torch.FloatTensor</code> (if <code>return_dict=False</code> is passed or when <code>config.return_dict=False</code>) comprising various
elements depending on the configuration (<a
  href="/docs/transformers/v4.32.0/en/model_doc/switch_transformers#transformers.SwitchTransformersConfig"
>SwitchTransformersConfig</a>) and inputs.</p>
<ul>
<li>
<p><strong>last_hidden_state</strong> (<code>torch.FloatTensor</code> of shape <code>(batch_size, sequence_length, hidden_size)</code>) \u2014 Sequence of hidden-states at the output of the last layer of the model.</p>
</li>
<li>
<p><strong>hidden_states</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_hidden_states=True</code> is passed or when <code>config.output_hidden_states=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for the output of the embeddings, if the model has an embedding layer, +
one for the output of each layer) of shape <code>(batch_size, sequence_length, hidden_size)</code>.</p>
<p>Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.</p>
</li>
<li>
<p><strong>attentions</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_attentions=True</code> is passed or when <code>config.output_attentions=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, num_heads, sequence_length, sequence_length)</code>.</p>
<p>Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.</p>
</li>
<li>
<p><strong>router_probs</strong> (<code>tuple(torch.FloatTensor)</code>, <em>optional</em>, returned when <code>output_router_probs=True</code> and <code>config.add_router_probs=True</code> is passed or when <code>config.output_router_probs=True</code>) \u2014 Tuple of <code>torch.FloatTensor</code> (one for each layer) of shape <code>(batch_size, sequence_length, num_experts)</code>.</p>
<p>Raw router probabilities that are computed by MoE routers, these terms are used to compute the auxiliary
loss and the z_loss for Mixture of Experts models.</p>
</li>
</ul>
`,returnType:`
<p><code>transformers.modeling_outputs.MoEModelOutput</code> or <code>tuple(torch.FloatTensor)</code></p>
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