code: def __call__(self, z, y):
      return self.forward(z, y)
  
imports: import typing
  import torch
  from fate.arch.context import Context
  from fate.arch.protocol.mpc.common.encoding import IgnoreEncodings
  from fate.arch.protocol.mpc.mpc import FixedPointEncoder
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 3 for calling the SSHELogisticRegressionLossLayer obj's underlying member method code with example usage: obj.__call__(z, y) and returns: self