code: def toggle_y_axis(self, signal_name=None):
      for signal in self.signals.values():
          if signal.selected:
              signal.toggle_axis()
  
file_path: coach/rl_coach/dashboard_components/signals_files_group.py
imports: import os
  from multiprocessing import Process, Manager
  from os.path import basename
  import pandas
  from rl_coach.dashboard_components.globals import x_axis_options, add_directory_csv_files, show_spinner, x_axis
  from rl_coach.dashboard_components.signals_file_base import SignalsFileBase
  from rl_coach.dashboard_components.signals_file import SignalsFile
label_desc: Use image node_id 5 for calling the SignalsFilesGroup obj's underlying member method code with example usage: obj.toggle_y_axis(signal_name) without return types