{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"p.projections.push(ProjectionElem::Field(Either::Left(FieldId"}]}
                                p.projections.push(ProjectionElem::Field(Either::Left(FieldId {
                                self.current_capture_span_stack.push(MirSpan::PatId(arg));
                                    parent: variant,