code: def arccosh(x):
      """Compute the arcosh, numerically stable."""
      x = torch.clamp(x, min=1 + EPSILON)
      a = torch.log(x)
      b = torch.log1p(torch.sqrt(x * x - 1) / x)
      return a + b
  
file_path: flair/flair/nn/distance/hyperbolic.py
imports: import torch
  from torch import Tensor, nn
label_desc: Use image node_id 1 for calling a global function with example usage: arccosh(x) and returns: unknown