code: def get_weights(self):
      weights = self.variables.get_weights()
      return list(weights.keys()), list(weights.values())
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import time
  import tensorflow
  from tensorflow.examples.tutorials.mnist import input_data
  import ray
  import ray.experimental.tf_utils
  from bigdl.dllib.utils.log4Error import invalidInputError
label_desc: Use image node_id 7 for calling the SimpleCNN obj's underlying member method code with example usage: obj.get_weights() and returns: list,  list