utils.py 文件源码

def _state_size_with_prefix(state_size, prefix=None):
  """Helper function that enables int or TensorShape shape specification.
  This function takes a size specification, which can be an integer or a
  TensorShape, and converts it into a list of integers. One may specify any
  additional dimensions that precede the final state size specification.
  Args:
    state_size: TensorShape or int that specifies the size of a tensor.
    prefix: optional additional list of dimensions to prepend.
  Returns:
    result_state_size: list of dimensions the resulting tensor size.
  """
  result_state_size = tensor_shape.as_shape(state_size).as_list()
  if prefix is not None:
    if not isinstance(prefix, list):
      raise TypeError("prefix of _state_size_with_prefix should be a list.")
    result_state_size = prefix + result_state_size
  return result_state_size