message: Fixing math_ops.reduce_variance for dispatch failure to ragged
diff: @@ -2493,6 +2493,7 @@ def reduce_variance(input_tensor, axis=None, keepdims=False, name=None):
  @end_compatibility
  """
  name = name if name else "reduce_variance"
  + input_tensor = ops.convert_to_tensor(input_tensor)
  with ops.name_scope(name):
  means = reduce_mean(input_tensor, axis=axis, keepdims=True)
  if means.dtype.is_integer:
  