code: def test_no_data_with_empty_series(Chart):
      """Test no data for 2 empty series"""
      chart = Chart()
      chart.add("Serie1", [])
      chart.add("Serie2", [])
      q = chart.render_pyquery()
      assert q(".text-overlay text").text() == "No data"
  
imports: import io
  import os
  import uuid
  import pytest
  import pygal
  from pygal.graph.map import BaseMap
  from pygal.test import make_data
  from pygal.util import cut
label_desc: Use image node_id 16 for calling a global function with example usage: test_no_data_with_empty_series(Chart) without return types