syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"self.declare_bindings("}]}
source_snippet:                 self.declare_bindings(
context_before:                 let opt_expr_place = expr_place.as_ref().map(|place| (Some(place), expr_span));
context_after:                     source_scope,