code: def __init__(self, var_list):
      self.op = tf.concat(
          axis=0, values=[tf.reshape(v, [numel(v)]) for v in var_list]
      )
  
imports: import numpy
  import tensorflow
  import copy
  import os
  import functools
  import collections
  import multiprocessing
label_desc: Use image node_id 1 to create a new GetFlat object from inherited base classes: object with example: obj = GetFlat(var_list)