def get_opening_note(self):
command_name = self.invoked_with<EOL>return "<STR_LIT>""<STR_LIT>".format(self.clean_prefix, command_name)<EOL>
Returns help command's opening note. This is mainly useful to override for i18n purposes.

        The default implementation returns ::

            Use `{prefix}{command_name} [command]` for more info on a command.
            You can also use `{prefix}{command_name} [category]` for more info on a category.