code: def test_sampling_type():
      """See https://github.com/rasterio/rasterio/issues/378."""
      with rasterio.open("tests/data/RGB.byte.tif") as src:
          sampler = src.sample([(220650.0, 2719200.0)], indexes=[2])
          assert type(sampler)
  
file_path: rasterio/tests/test_sampling.py
imports: import numpy
  import rasterio
label_desc: Use image node_id 10 for calling a global function with example usage: test_sampling_type() without return types