syntax_data: {"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"typing_env:"}]}
source_snippet:             typing_env: self.typing_env,
context_before:             typeck_results: self.typeck_results,
context_after:             module: self.tcx.parent_module(self.lint_level).to_def_id(),