code: def init_weight(self):
      for layer in self.layers:
          param_init.th_linear_fill(layer)
  
imports: import math
  import copy
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.models import layers
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.utils import utils
  from paddleseg.core.train import check_logits_losses
label_desc: Use image node_id 2 for calling the MLP obj's underlying member method code with example usage: obj.init_weight() without return types