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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 _help_commands(self):
 """ Help on all the available commands """

        help =  'Workbench Commands:'
        for command in self.list_all_commands():
            full_help = self.work_request('help_formatter', command)['help_formatter']['help']
            compact_help = full_help.split('\n')[:2]
            help += '\n\n%s' % '\n'.join(compact_help)
        return help