code: def init_weight(self):
      for layer in self.sublayers():
          if isinstance(layer, nn.Conv2D):
              param_init.normal_init(layer.weight, std=0.001)
          elif isinstance(layer, (nn.BatchNorm, nn.SyncBatchNorm)):
              param_init.constant_init(layer.weight, value=1.0)
              param_init.constant_init(layer.bias, value=0.0)
  
file_path: PaddleSeg/contrib/RSSegBenchmark/c2fnet/models/c2fnet.py
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  import paddleseg.utils.logger
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models import layers
  from paddleseg.utils import utils
label_desc: Use image node_id 3 for calling the FCNHead obj's underlying member method code with example usage: obj.init_weight() without return types