feature_column.py 文件源码

def _to_dnn_input_layer(self,
                          input_tensor,
                          weight_collections=None,
                          trainable=True,
                          output_rank=2):
    if input_tensor.dtype != dtypes.float32:
      input_tensor = math_ops.to_float(input_tensor)
    return _reshape_real_valued_tensor(input_tensor, output_rank, self.name)