code: def fp16_clamp(x, min=None, max=None):
      if not x.is_cuda and x.dtype == torch.float16:
          # clamp for cpu float16, tensor fp16 has no clamp implementation
          return x.float().clamp(min, max).half()
  
      return x.clamp(min, max)
  
label_desc: Use image node_id 1 for calling a global function with example usage: fp16_clamp(x, min, max) and returns: x, x