class_docstr: This class is for a convolutional layer.
class_docstr_tok: ["This","class","is","for","a","convolutional","layer","."]
code: def forward(self, input):
      output = self.conv(input)
      return output
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.models import layers
  from paddleseg.cvlibs import manager
  from paddleseg.utils import utils
label_desc: Use image node_id 2 for calling the C obj's underlying member method code with example usage: obj.forward(input) and returns: output