{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"///"}]}
    /// when called using `AsyncFnOnce::call_once`. It is produced by the `ByMoveBody` pass which
    /// This is used by coroutine-closures, which must return a different flavor of coroutine
    /// is run right after building the initial MIR, and will only be populated for coroutines