code: def forward(self, x):
      return x.transpose(self.dim1, self.dim2)
  
imports: import dgl
  import torch
  import torch.nn
  import torch.nn.functional
  from dgl.geometry import farthest_point_sampler
label_desc: Use image node_id 2 for calling the SwapAxes obj's underlying member method code with example usage: obj.forward(x) and returns: x