message: Document that EMA is not eager-compatible for non-Variable tensors.
diff: @@ -398,6 +398,11 @@ class ExponentialMovingAverage(object):
  # TODO(touts): op_scope
  if var_list is None:
  var_list = variables.trainable_variables()
  + for v in var_list:
  + if isinstance(v, ops.EagerTensor):
  + raise TypeError(
  + "tf.train.ExponentialMovingAverage does not support non-Variable"
  + " tensors when eager execution is enabled.")
  zero_debias_true = set() # set of vars to set `zero_debias=True`
  for var in var_list:
  if var.dtype.base_dtype not in [
  