code: def forward(self, x):
      if self.padding == "same":
          x = self._manage_padding(
              x, self.kernel_size, self.dilation, self.stride
          )
      else:
          raise ValueError("Padding must be 'same'. Got {self.padding}")
  
      return self.conv(x)
  
imports: import math
  import os
  import paddle
  import paddle.nn
  import paddle.nn.functional
label_desc: Use image node_id 2 for calling the Conv1d obj's underlying member method code with example usage: obj.forward(x) and returns: self