message: Fix from_numpy for bytes
diff: @@ -110,6 +110,10 @@ def from_array(arr, name=None): # type: (np.ndarray[Any], Optional[Text]) -> Te
  for s in e:
  if isinstance(s, text_type):
  tensor.string_data.append(s.encode('utf-8'))
  + elif isinstance(s, bytes):
  + tensor.string_data.append(s)
  + elif isinstance(e, bytes):
  + tensor.string_data.append(e)
  else:
  raise NotImplementedError(
  "Unrecognized object in the object array, expect a string, or array of bytes: ", str(type(e)))
  