{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"#[allow_internal_unstable(dispatch_from_dyn,"}]}
    #[allow_internal_unstable(dispatch_from_dyn, coerce_unsized, unsize)]
    #[rustc_builtin_macro(CoercePointee, attributes(pointee))]
    pub macro CoercePointee($item:item) {