def _userManualCb(self, unused_action):
show_user_manual()
def _userManualCb(self, unused_button):
"""Handle a click on the Help button."""
show_user_manual()
def _userManualCb(self, unused_action):
show_user_manual()
def _userManualCb(self, unused_button):
"""Handle a click on the Help button."""
show_user_manual()
