syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"relation.register_alias_relate_predicate(a,"}]}
source_snippet:                     relation.register_alias_relate_predicate(a, b);
context_before:                 StructurallyRelateAliases::No => {
context_after:                     Ok(a)