syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"query:"}]}
source_snippet:     query: ty::PseudoCanonicalInput<'tcx, Ty<'tcx>>,
context_before:     tcx: TyCtxt<'tcx>,
context_after: ) -> Result<TyAndLayout<'tcx>, &'tcx LayoutError<'tcx>> {