code: def real_dtype(self):
      if self._ivy_dtype is ivy.complex64:
          return DType(1)
      if self._ivy_dtype is ivy.complex128:
          return DType(2)
      else:
          return self
  
imports: import ivy
  import ivy.functional.frontends.tensorflow
  import ivy.functional.frontends.numpy
  from ivy.functional.frontends.tensorflow.func_wrapper import to_ivy_arrays_and_back, handle_tf_dtype
label_desc: Use image node_id 16 for calling the DType obj's underlying member method code with example usage: obj.real_dtype() and returns: DType, DType, self