syntax_data: {"ast_node_type":"function","tokens":[{"end":70,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn register_alias_relate_predicate(&mut self, a: I::Ty, b: I::Ty);
context_before:     /// Register `AliasRelate` obligation(s) that both types must be related to each other.
context_after: }