{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"projection_ty.substitution.as_slice(Interner).split_at(parent_len);"}]}
                projection_ty.substitution.as_slice(Interner).split_at(parent_len);
            let (trait_args, assoc_args) =
            let (self_ty, args_no_self) =