message: Update metric_ops.py
diff: @@ -739,7 +739,7 @@ def _streaming_confusion_matrix_at_thresholds(predictions,
  else:
  for include in includes:
  if include not in all_includes:
  - raise ValueError('Invaild key: %s.' % include)
  + raise ValueError('Invalid key: %s.' % include)
  predictions, labels, weights = metrics_impl._remove_squeezable_dimensions( # pylint: disable=protected-access
  predictions, labels, weights)
  