{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"anchor:"}]}
                    anchor: SpanAnchor { ast_id: FIXUP_DUMMY_AST_ID, ..span.anchor },
                    range: TextRange::new(TextSize::new(idx), FIXUP_DUMMY_RANGE_END),
                    ctx: span.ctx,