code: def forward(self, x: torch.Tensor, y: torch.Tensor) -> torch.Tensor:
      return torch.einsum("ji,ki->jk", self.linear(x), self.linear(y))
  
file_path: alibi-detect/alibi_detect/utils/pytorch/tests/test_kernels_pt.py
imports: from itertools import product
  import numpy
  import pytest
  import torch
  from torch import nn
  from alibi_detect.utils.pytorch import GaussianRBF, DeepKernel
label_desc: Use image node_id 2 for calling the MyKernel obj's underlying member method code with example usage: obj.forward(x, y) and returns: torch