code: def get_KXX_inv(gp: Model) -> Tensor:
      r"""Get the inverse matrix of K(X,X).
      Args:
          gp: Botorch model.
      Returns:
          The inverse of K(X,X).
      """
      L_inv_upper = gp.prediction_strategy.covar_cache.detach()
      return L_inv_upper @ L_inv_upper.transpose(0, 1)
  
file_path: Ax/ax/utils/sensitivity/derivative_gp.py
imports: import math
  import torch
  from botorch.models.model import Model
  from gpytorch.distributions import MultivariateNormal
  from torch import Tensor
label_desc: Use image node_id 1 for calling a global function with example usage: get_KXX_inv(gp) and returns: unknown