code: def unify(self, *, other):
      if set(self) != set(other):
          raise TensorforceError.mismatch(
              name="TensorsSpec.unify",
              argument="keys",
              value1=sorted(self),
              value2=sorted(other),
          )
      return self.fmap(
          function=(lambda x, y: x.unify(other=y)), zip_values=other
      )
  
file_path: tensorforce/tensorforce/core/utils/tensors_spec.py
imports: from tensorforce import TensorforceError
  from tensorforce.core.utils import ArrayDict, NestedDict, SignatureDict, TensorDict, TensorSpec
label_desc: Use image node_id 7 for calling the TensorsSpec obj's underlying member method code with example usage: obj.unify() and returns: self