code: def forward(self, x):
      residual = x
      out = self.conv1(x)
      out = self.relu(out)
      out = self.bn1(out)
  
      spx = torch.split(out, self.width, 1)
      for i in range(self.nums):
          if i == 0:
              sp = spx[i]
          else:
              sp = sp + spx[i]
          sp = self.convs[i](sp)
          sp = self.relu(sp)
          sp = self.bns[i](sp)
          if i == 0:
              out = sp
          else:
              out = torch.cat((out, sp), 1)
      out = torch.cat((out, spx[self.nums]), 1)
  
      out = self.conv3(out)
      out = self.relu(out)
      out = self.bn3(out)
  
      out = self.se(out)
      out += residual
      return out
  
file_path: espnet/espnet2/spk/layers/ecapa_block.py
imports: import math
  import torch
  import torch.nn
label_desc: Use image node_id 2 for calling the EcapaBlock obj's underlying member method code with example usage: obj.forward(x) and returns: out