def _process_tensor_event(self, event, thresholds):
    """Converts a TensorEvent into a dict that encapsulates information on it.

    Args:
      event: The TensorEvent to convert.
      thresholds: An array of floats that ranges from 0 to 1 (in that
        direction and inclusive of 0 and 1).

    Returns:
      A JSON-able dictionary of PR curve data for 1 step.
    """
    return self._make_pr_entry(
        event.step,
        event.wall_time,
        tensor_util.make_ndarray(event.tensor_proto),
        thresholds)