code: def __call__(self, x):
      h = self.bn1(self.conv1(x))
      h = chx.max_pool(chx.maximum(0, h), 3, stride=2)
      h = self.res2(h)
      h = self.res3(h)
      h = self.res4(h)
      h = self.res5(h)
      h = chx.average_pool(h, 7, stride=1)
      h = self.fc(h)
  
      return h
  
imports: import numpy
  import chainerx
label_desc: Use image node_id 2 for calling the ResNet50 obj's underlying member method code with example usage: obj.__call__(x) and returns: h