code: def __hash__(self):
      return hash(self.tuple())
  
imports: from functools import total_ordering
  import numpy
  import tensorflow
  from tensorforce import TensorforceError, util
  from tensorforce.core.utils import tf_util
label_desc: Use image node_id 20 for calling the TensorSpec obj's underlying member method code with example usage: obj.__hash__() and returns: hash