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Inherited from windows::basic_overlapped_handle.
Release ownership of the underlying native handle.
native_handle_type release();
            This function causes all outstanding asynchronous operations to finish
            immediately, and the handlers for cancelled operations will be passed
            the asio::error::operation_aborted error. Ownership
            of the native handle is then transferred to the caller.
          
Thrown on failure.
            This function is unsupported on Windows versions prior to Windows 8.1,
            and will fail with asio::error::operation_not_supported
            on these platforms.