{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"//"}]}
                // Doesn't have to be a `dyn Trait`, but the unsized tail must be `dyn Trait`.
                // Obtain the underlying trait we are working on, and the adjusted receiver argument.
                // (For that reason we also cannot use `unpack_dyn_trait`.)