code: def _compute_para(self, key) -> float:
      scalekey = self._linear(key)
      scalekey = self._linear2(scalekey)
      b = scalekey.size(0)
      c = scalekey.size(1)
      scale = scalekey.view(b, c, -1).mean(dim=2).view(b, c, 1, 1)
      scale = scale.mean(dim=0).view(-1, c, 1, 1)
      scale = scale.view(-1, c)
      scale = scale.view(1, c)
      scale = self._decode(self._leaky_relu(self._encode(scale))).view(
          1, c
      )
      return scale
  
imports: import random
  import torch
  from torch import nn
  import numpy
  from typing import Literal
label_desc: Use image node_id 3 for calling the LinearPassportBlock obj's underlying member method code with example usage: obj._compute_para(key) and returns: scale