code: def test_mp_no_main_env():
      """Get raster data using ProcessPoolExecutor with main thread Env"""
      with ProcessPoolExecutor() as pool:
          for res in pool.map(
              get_data, ["tests/data/RGB.byte.tif"] * 10
          ):
              assert res.any()
  
imports: from concurrent.futures import ProcessPoolExecutor
  import rasterio
label_desc: Use image node_id 3 for calling a global function with example usage: test_mp_no_main_env() without return types