class_docstr: This class groups the batch normalization and PReLU activation
class_docstr_tok: ["This","class","groups","the","batch","normalization","and","PReLU","activation"]
code: def forward(self, input):
      output = self.bn(input)
      output = self.act(output)
      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 BR obj's underlying member method code with example usage: obj.forward(input) and returns: output