code: def test_operand_key():
      t = ones((10, 2), chunk_size=5)
      t_slice1 = t[:5]
      t_slice2 = t[5:]
  
      assert t_slice1.op.key != t_slice2.op.key
  
imports: import numpy
  import pytest
  from ....config import option_context
  from ....core import tile
  from ...base.broadcast_to import TensorBroadcastTo
  from ...datasource import ones, tensor, array, empty
  from ...datasource.ones import TensorOnes
  from ...merge.concatenate import TensorConcatenate
  from ..None import choose, unravel_index, nonzero, compress, fill_diagonal
  from ..setitem import TensorIndexSetValue
label_desc: Use image node_id 15 for calling a global function with example usage: test_operand_key() without return types