code: def tf_type(self):
      if hasattr(self, "_tf_type"):
          return self._tf_type
      else:
          return tf_util.DTYPE_MAPPING[self.type]
  
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 7 for calling the TensorSpec obj's underlying member method code with example usage: obj.tf_type() and returns: self, tf_util