code: def forward(self, x):
      identity = x
      out = self.conv1(x)
      out = self.bn1(out)
      out = self.relu(out)
      out = self.conv2(out)
      out = self.bn2(out)
      if self.downsample is not None:
          identity = self.downsample(x)
      out = out + identity
      out = self.relu(out)
      return out
  
imports: import torch
  import torch.nn
  from torch.nn import BatchNorm3d
  from .non_local import build_nonlocal_block
label_desc: Use image node_id 2 for calling the BasicBlock obj's underlying member method code with example usage: obj.forward(x) and returns: out