code: def __enter__(self):
      assert self.is_initialized is not None
      if self.is_initialized:
          Module._MODULE_STACK.append(self)
      else:
          # Hack: keep non-empty module stack from constructor
          assert (
              len(Module._MODULE_STACK) == 1
              and Module._MODULE_STACK[0] is self
          )
      self.device.__enter__()
      self.name_scope.__enter__()
      return self
  
imports: from collections import OrderedDict
  import logging
  import os
  import time
  import h5py
  import numpy
  import tensorflow
  from tensorforce import TensorforceError
  from tensorforce.core import ArrayDict, Module, SignatureDict, TensorDict, TensorSpec, TensorsSpec, tf_function, tf_util, VariableDict
  from tensorforce.core.layers import Layer
label_desc: Use image node_id 7 for calling the Model obj's underlying member method code with example usage: obj.__enter__() and returns: self