Returns the array with the given handle.

        Args:
          handle: The handle of the array whose memory should be freed. This
            handle must come from the _create_array method.

        Returns:
          The numpy ndarray with the handle given from _create_array.

def _get_array(self, handle: int) -> np.ndarray:
        """Returns the array with the given handle.

        Args:
          handle: The handle of the array whose memory should be freed. This
            handle must come from the _create_array method.

        Returns:
          The numpy ndarray with the handle given from _create_array.
        """
        tup = self._arrays[handle]
        assert tup is not None
        c_arr, shape = tup
        with warnings.catch_warnings():
            warnings.simplefilter('ignore', RuntimeWarning)
            result = np.ctypeslib.as_array(c_arr)
        result.shape = shape
        return result