{"ast_node_type":"import","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows the use of SIMD types in functions declared in `extern` blocks.
    (unstable, rust_cold_cc, "1.63.0", Some(97544)),
    (unstable, simd_ffi, "1.0.0", Some(27731)),