syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// macro is to define an interface that can be programmatically used by the option parser
context_before: /// Defines all `CodegenOptions`/`DebuggingOptions` fields and parsers all at once. The goal of this
context_after: /// to initialize the struct without hardcoding field names all over the place.