syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:         /// This method begins by converting `src` and `dst` from `Ty`s to `Tree`s,
context_before:     impl<'tcx> MaybeTransmutableQuery<Ty<'tcx>, TyCtxt<'tcx>> {
context_after:         /// then computes an answer using those trees.