message: Make error message about supported TPU infeed type more actionable.
diff: @@ -210,8 +210,9 @@ def infeed_dequeue(dtype, shape, name=None):
  """
  if dtype not in _SUPPORTED_INFEED_DTYPES:
  raise TypeError(
  - "{} is not a supported TPU infeed type. Supported types are: "
  - "{}".format(dtype, list(_SUPPORTED_INFEED_DTYPES)))
  + "Operation '{}' has type {} which is not a supported TPU infeed type. "
  + "Supported types are: {}".format(name, dtype,
  + list(_SUPPORTED_INFEED_DTYPES)))
  return gen_tpu_ops.infeed_dequeue(dtype, shape, name=name)
  