{"ast_node_type":"function","tokens":[{"end":67,"kind":"keyword","start":0,"text":"fn"}]}
    fn fn_ctr_wrapped_2() -> Result<Self, u32> { unimplemented!() }
    fn fn_ctr_wrapped() -> Option<Self> { unimplemented!() }
    fn fn_other() -> Option<u32> { unimplemented!() }