{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"///"}]}
    /// then the return value would be `&[LockGuard]`.
    /// have significant drop but the type `LockGuard` does, and so if `ty  = Vec<LockGuard>`
    /// *IMPORTANT*: *DO NOT* run this query before promoted MIR body is constructed,