code: def test_from_spark_xshards(orca_context_fixture):
      ray_xshards, ndarray_dict = get_ray_xshards()
      data_parts = ray_xshards.collect()
      verify_collect_results(data_parts, ndarray_dict)
  
file_path: BigDL/python/orca/test/bigdl/orca/data/ray/test_ray_xshards.py
imports: import pytest
  import ray
  from bigdl.orca.data.ray_xshards import RayXShards
label_desc: Use image node_id 3 for calling a global function with example usage: test_from_spark_xshards(orca_context_fixture) without return types