code: def extract_and_render_all_symbol_masks(self, raw_data_directory: str, destination_directory: str):
          
          print("Extracting Symbols from Muscima++ Dataset...")
  
          xml_files = self.get_all_xml_file_paths(raw_data_directory)
          crop_objects = self.load_crop_objects_from_xml_files(xml_files)
          self.render_masks_of_crop_objects_into_image(crop_objects, destination_directory)
docs: Extracts all symbols from the raw XML documents and generates individual symbols from the masks
  
          :param raw_data_directory: The directory, that contains the xml-files and matching images
          :param destination_directory: The directory, in which the symbols should be generated into. One sub-folder per
                                        symbol category will be generated automatically