message: Fixed formatting error for einsum
diff: @@ -240,7 +240,7 @@ def einsum(equation, *inputs, **kwargs):
  for a in axis_labels:
  for input_labels in input_axis_labels:
  if (len(input_axis_labels) == 1 and input_labels.count(a) == 2
  - and input_labels == input_labels[::-1]):
  + and input_labels == input_labels[::-1] and '->' not in equation):
  return math_ops.trace(inputs[0])
  if input_labels.count(a) > 1:
  raise ValueError(
  