<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def complete_help_command(self, text: str, line: str, begidx: int, endidx: int) -> List[str]: """Completes the command argument of help"""


        # Complete token against topics and visible commands
        topics = set(self.get_help_topics())
        visible_commands = set(self.get_visible_commands())
        strs_to_match = list(topics | visible_commands)
        return self.basic_complete(text, line, begidx, endidx, strs_to_match)