syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"(self"}]}
source_snippet:         (self >= kw::Async && self <= kw::Dyn) && edition() >= Edition::Edition2018
context_before:     fn is_used_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool {
context_after:     }