code: def __init__(self, in_ch=3, mid_ch=12, out_ch=3):
      super(RSU4F, self).__init__()
  
      self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)
  
      self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
      self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=2)
      self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=4)
  
      self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=8)
  
      self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=4)
      self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=2)
      self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager
  from paddleseg.models import layers
  from paddleseg.utils import utils
label_desc: Use image node_id 1 to create a new RSU4F object from inherited base classes: nn with example: obj = RSU4F(in_ch, mid_ch, out_ch)