syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // case it was capturing too much.
context_before:         // Allow using `#[define_opaque]` on assoc methods and type aliases to override the default collection mode in
context_after:         self.mode = CollectionMode::RpitAndAsyncFnOnly;