code: def test_subdatasets():
      """Get subdataset names and descriptions"""
      with rasterio.open("netcdf:tests/data/RGB.nc") as src:
          subs = src.subdatasets
          assert len(subs) == 3
          for name in subs:
              assert name.startswith("netcdf")
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_subdatasets() without return types