syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":".eq(DefineOpaqueTypes::No,"}]}
source_snippet:             .eq(DefineOpaqueTypes::No, predicate.trait_ref, trait_ref)
context_before:             .at(&obligation.cause, obligation.param_env)
context_after:             .map(|InferOk { obligations, .. }| obligations)