message: Modify _convert_inputs_to_signature, return empty list for flat_kwargs
diff: @@ -2698,11 +2698,11 @@ class FunctionSpec(object):
  return inputs, kwargs, flat_inputs, flat_kwargs
  else:
  assert not kwargs
  - inputs = _convert_inputs_to_signature(
  + inputs, flat_inputs = _convert_inputs_to_signature(
  inputs,
  self._input_signature,
  self._flat_input_signature)
  - return inputs, {}, flat_inputs, {} ## TODO(jlchu): Check if last should be a dict
  + return inputs, {}, flat_inputs, []
  def _as_ndarray(value):
  @@ -2802,7 +2802,7 @@ def _convert_inputs_to_signature(inputs, input_signature, flat_input_signature):
  flat_sequence=flatten_inputs,
  expand_composites=True)
  - return inputs
  + return inputs, flatten_inputs
  class FunctionCache(object):
  