sequence_example_decoder.py 文件源码

def __init__(self, context_keys_to_features, sequence_keys_to_features,
               items_to_handlers):
    """Constructs the decoder.
    Args:
      keys_to_features: a dictionary from TF-Example keys to either
        tf.VarLenFeature or tf.FixedLenFeature instances. See tensorflow's
        parsing_ops.py.
      items_to_handlers: a dictionary from items (strings) to ItemHandler
        instances. Note that the ItemHandler's are provided the keys that they
        use to return the final item Tensors.
    """
    self._context_keys_to_features = context_keys_to_features
    self._sequence_keys_to_features = sequence_keys_to_features
    self._items_to_handlers = items_to_handlers