syntax_data: {"ast_node_type":"function","tokens":[{"end":69,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn alias_has_const_conditions(self, def_id: Self::DefId) -> bool;
context_before:     fn fn_is_const(self, def_id: Self::DefId) -> bool;
context_after:     fn const_conditions(