syntax_data: {"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) allow_internal_unsafe: bool,
context_before:     /// Suppresses the `unsafe_code` lint for code produced by this macro.
context_after:     /// Enables the macro helper hack (`ident!(...)` -> `$crate::ident!(...)`) for this macro.