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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 show_help(self):
 """ Prints help text about available commands. """

        output = [
            'Usage %s subcommand [options] [args]' % self.prog_name,
            '',
            'Available commands:',
            '',
        ]
        for cmd in self.get_commands():
            output.append('  %s' % cmd)
        output += ['', '']
        self.stdout.write(u'\n'.join(output))