code: def set_context(self, ctx: Context):
      if isinstance(ctx, Context):
          super().set_context(ctx)
          setup_model(self, ctx)
          if hasattr(self, "wa") and hasattr(self, "wb"):
              self._set_wa_wb()
          else:
              self.register_buffer(
                  "wa", self._model.aggregator.wa.share
              )
              self.register_buffer(
                  "wb", self._model.aggregator.wb.share
              )
  
imports: from typing import Union, Literal, Tuple
  import torch
  from fate.arch import Context
  from fate.ml.nn.model_zoo.agg_layer.agg_layer import _AggLayerBase
  from fate.arch.protocol.mpc.nn.sshe.nn_layer import SSHENeuralNetworkAggregatorLayer, SSHENeuralNetworkOptimizerSGD
label_desc: Use image node_id 2 for calling the SSHEAggLayerGuest obj's underlying member method code with example usage: obj.set_context(ctx) without return types