code: def test_ravel():
      arr = ones((10, 5), chunk_size=2)
      flat_arr = ravel(arr)
      assert flat_arr.shape == (50,)
  
imports: import numpy
  import pytest
  from ....core import tile
  from ....core.operand import OperandStage
  from ...datasource import ones, tensor, arange
  from ..None import transpose, broadcast_to, where, argwhere, array_split, split, squeeze, result_type, repeat, copyto, isin, moveaxis, TensorCopyTo, atleast_1d, atleast_2d, atleast_3d, ravel, searchsorted, unique, sort, partition, topk, to_gpu, to_cpu
label_desc: Use image node_id 17 for calling a global function with example usage: test_ravel() without return types