{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":".type_dependent_def_id(expr.hir_id)"}]}
                            .type_dependent_def_id(expr.hir_id)
                            .typeck(path_segment.hir_id.owner.def_id)
                            .and_then(|def_id| tcx.impl_of_assoc(def_id))