code: def test_shard_plus_one_sum(self):
      X = Tensor.ones(256).contiguous().realize()
      X.shard_([d0, d1], 0)
      (X + 1).sum().realize()
  
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 4 for calling the TestMultiTensor obj's underlying member method code with example usage: obj.test_shard_plus_one_sum() without return types