code: def forward(self, x):
      if hasattr(self, "conv1") and hasattr(self, "conv2"):
          y = self.act(self.conv2(self.act(self.conv1(x))))
      else:
          if self.rbr_identity_st1 is None:
              id_out_st1 = 0
          else:
              id_out_st1 = self.rbr_identity_st1(x)
  
          x1_1 = 0
          for i in range(self.k):
              x1_1 += self.depth_conv[i](x)
  
          x1_2 = self.rbr_1x1(x)
          x1 = self.act(x1_1 + x1_2 + id_out_st1)
  
          if self.rbr_identity_st2 is None:
              id_out_st2 = 0
          else:
              id_out_st2 = self.rbr_identity_st2(x1)
  
          x2_1 = 0
          for i in range(self.k):
              x2_1 += self.point_conv[i](x1)
          y = self.act(x2_1 + id_out_st2)
  
      return y
  
file_path: PaddleDetection/ppdet/modeling/backbones/mobileone.py
imports: import paddle
  import paddle.nn
  from paddle import ParamAttr
  from paddle.regularizer import L2Decay
  from paddle.nn.initializer import Normal, Constant
  from ppdet.modeling.ops import get_act_fn
  from ppdet.modeling.layers import ConvNormLayer
label_desc: Use image node_id 2 for calling the MobileOneBlock obj's underlying member method code with example usage: obj.forward(x) and returns: y