code: def _maybe_zero(self, ix):
      val = self._tensor_array[ix]
      if val is None:
          val = self._tensor_array[ix] = tf_frontend.zeros(
              shape=self._element_shape, dtype=self._dtype
          )
      return val
  
imports: import weakref
  import ivy
  import ivy.functional.frontends.tensorflow
  from ivy.functional.frontends.tensorflow import EagerTensor
label_desc: Use image node_id 15 for calling the TensorArray obj's underlying member method code with example usage: obj._maybe_zero(ix) and returns: val