code: def test_matmul_shard_X_1(self):
      return self._test_matmul_shard_axis(1, None, devices_2)
  
imports: import functools
  import unittest
  from tinygrad import Tensor, Device, nn, GlobalCounters
  from tinygrad.device import _BufferCopy
  from tinygrad.helpers import CI
  from tinygrad.jit import TinyJit
  from tinygrad.nn.state import get_parameters
  import numpy
label_desc: Use image node_id 21 for calling the TestMultiTensor obj's underlying member method code with example usage: obj.test_matmul_shard_X_1() and returns: self