code: def logexpit(X: Tensor) -> Tensor:
      """Computes the logarithm of the expit (a.k.a. sigmoid) function."""
      return -log1pexp(-X)
  
imports: from __future__ import annotations
  import math
  from typing import Callable, Tuple, Union
  import torch
  from botorch.exceptions import UnsupportedError
  from botorch.utils.constants import get_constants_like
  from torch import finfo, Tensor
  from torch.nn.functional import softplus
label_desc: Use image node_id 9 for calling a global function with example usage: logexpit(X) and returns: unknown