code: def convert_to_deploy(self):
      if not hasattr(self, "conv"):
          self.conv = nn.Conv2D(
              in_channels=self.ch_in,
              out_channels=self.ch_out,
              kernel_size=3,
              stride=1,
              padding=1,
              groups=1,
          )
      kernel, bias = self.get_equivalent_kernel_bias()
      self.conv.weight.set_value(kernel)
      self.conv.bias.set_value(bias)
      self.__delattr__("conv1")
      self.__delattr__("conv2")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddle import ParamAttr
  from paddle.regularizer import L2Decay
  from paddle.nn.initializer import Constant
  from ppdet.modeling.ops import get_act_fn
  from ppdet.core.workspace import register, serializable
  from ..shape_spec import ShapeSpec
label_desc: Use image node_id 3 for calling the RepVggBlock obj's underlying member method code with example usage: obj.convert_to_deploy() without return types