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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _command_and_args(tokens: List[str]) -> Tuple[str, str]: """Given a list of tokens, return a tuple of the command and the args as a string. """

        command = ''
        args = ''

        if tokens:
            command = tokens[0]

        if len(tokens) > 1:
            args = ' '.join(tokens[1:])

        return command, args