code: def lod_remove(input):
      """Lod Remove
  
      Remove the lod for LodTensor and Flatten the data into 1D-Tensor.
  
      Args:
          input: A tensor to be flattend
  
      Return:
          A 1D input
      """
      return L.reshape(L.reshape(input, [1, -1]), [-1])
  
file_path: PGL/legacy/pgl/utils/paddle_helper.py
imports: import warnings
  import numpy
  import paddle
  from paddle.fluid import core
  import paddle.fluid
  import paddle.fluid.layer_helper
  import paddle.fluid.layers
  from pgl.utils.logger import log
label_desc: Use image node_id 9 for calling a global function with example usage: lod_remove(input) and returns: L