{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"AllocError::InvalidUninitBytes(Some(BadBytesAccess"}]}
            AllocError::InvalidUninitBytes(Some(BadBytesAccess {
        self.init_mask.is_range_initialized(range).map_err(|uninit_range| {
                access: range,