code: def test_rgb_tuple_from_str():
      """Extract RGB values as tuple from string RGB color representation"""
      assert rgb_tuple_from_str("rgb(122,43,17)") == (122, 43, 17)
  
imports: import os
  import json
  import numpy
  import pytest
  import pandas
  from pandas.util.testing import assert_frame_equal
  from matplotlib.pyplot import imread
  from mapboxgl.errors import SourceDataError, DateConversionError
  from mapboxgl.utils import df_to_geojson, geojson_to_dict_list, scale_between, create_radius_stops, create_weight_stops, create_numeric_stops, create_color_stops, img_encode, rgb_tuple_from_str, color_map, height_map, numeric_map, convert_date_columns
label_desc: Use image node_id 18 for calling a global function with example usage: test_rgb_tuple_from_str() without return types