{"ast_node_type":"other","tokens":[{"end":104,"kind":"keyword","start":0,"text":"//"}]}
                        // If the method is defined (but ambiguous) for the receiver we have, it is also
                    Err(MethodError::Ambiguity(_)) => {
                        // likely we haven't `use`d it. It may be possible that if we `Box`/`Pin`/etc.