code: def _set_cov2_to_none(k: _ArrayOrKernel) -> _ArrayOrKernel:
      if isinstance(k, Kernel):
          k = k.replace(
              cov2=None
          )  # pytype: disable=attribute-error  # jax-ndarray
      return k
  
imports: from functools import partial
  from typing import Any, Callable, Iterable, Optional, TypeVar, Union
  import warnings
  import jax
  from jax import device_put
  from jax import devices
  from jax import jit
  from jax import pmap
  from jax import random
  import jax.numpy
  from jax.tree_util import tree_all
  from jax.tree_util import tree_flatten
  from jax.tree_util import tree_map
  from jax.tree_util import tree_unflatten
  import numpy
  from .utils import utils
  from .utils.kernel import Kernel
  from .utils.typing import KernelFn
  from .utils.typing import NTTree
label_desc: Use image node_id 7 for calling a global function with example usage: _set_cov2_to_none(k) and returns: k