dataset_schema.py 文件源码

def as_batched_placeholder(self, column):
    """Returns the representation of this column as a placeholder Tensor.

    Args:
      column: The column to be represented.
    """
    raise NotImplementedError()

# note we don't provide tf.FixedLenSequenceFeature yet, because that is
# only used to parse tf.SequenceExample.