{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"impl_walkable!(|&$($mut)?"}]}
        impl_walkable!(|&$($mut)? $($lt)? self: MethodCall, vis: &mut V| {
        // Special case to call `visit_method_receiver_expr`.
            let MethodCall { seg, receiver, args, span } = self;