code: def test_delete_nodata(data, runner):
      """Delete a dataset's nodata value"""
      inputfile = str(data.join("RGB.byte.tif"))
      result = runner.invoke(
          main_group,
          ["edit-info", inputfile, "--unset-nodata"],
          catch_exceptions=False,
      )
      assert result.exit_code == 0
  
imports: import json
  import click
  import numpy
  import pytest
  import rasterio
  from rasterio.enums import ColorInterp
  from rasterio.rio.edit_info import all_handler, crs_handler, tags_handler, transform_handler, colorinterp_handler
  from rasterio.rio.main import main_group
  import rasterio.shutil
label_desc: Use image node_id 4 for calling a global function with example usage: test_delete_nodata(data, runner) without return types