syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType("}]}
source_snippet:                     ty::Binder::dummy(ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(
context_before:                     self.param_env,
context_after:                         len,