code: def test_xml_filters_change_bars():
      """Test the use a xml filter"""
      plot = Bar(
          legend_at_bottom=True,
          explicit_size=True,
          width=800,
          height=600,
      )
      A = [60, 75, 80, 78, 83, 90]
      B = [92, 87, 81, 73, 68, 55]
      plot.add("A", A)
      plot.add("B", B)
      plot.add_xml_filter(ChangeBarsXMLFilter(A, B))
      q = plot.render_tree()
      assert len(q.findall("g")) == 2
      assert (
          q.findall("g")[1].attrib["transform"]
          == "translate(0,150), scale(1,0.75)"
      )
  
imports: from pygal import Bar
label_desc: Use image node_id 2 for calling a global function with example usage: test_xml_filters_change_bars() without return types