    def get_help(event):
        args = [
            "",
            "start end",
            "option1 {line-break} option2 [{line-break} option 3 ...]"
        ]
        description = (
            "Without arguments, display a random float number in the range \[0, 1).\n\n"
            "Add two integers separated by a space to get a random number in that range,"
            " including both endpoints: \[start, end].\n\n"
            "Put various options, each one in a different line to get one chosen randomly."
        )
        return CommandUsageMessage.get_usage_message(event.command, args, description)