syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub families: StaticCow<[StaticCow<str>]>,
context_before:     /// See <https://doc.rust-lang.org/reference/conditional-compilation.html#target_family>.
context_after:     /// Whether the target toolchain's ABI supports returning small structs as an integer.