{"ast_node_type":"other","tokens":[{"end":186,"kind":"keyword","start":0,"text":"//"}]}
    // [rustc's `is_known_valid_scrutinee`](https://github.com/rust-lang/rust/blob/c9bd03cb724e13cca96ad320733046cbdb16fbbe/compiler/rustc_mir_build/src/thir/pattern/check_match.rs#L288)
    //