syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // default which will require those blocks:
context_before:                 // redundant -- but we want to eventually enable `unsafe_op_in_unsafe_fn` by
context_after:                 // https://github.com/rust-lang/rust/issues/71668#issuecomment-1203075594).