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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 exec_cmd(self, command, **kwargs):
 """Normal save and load only need the command. To merge, just supply the merge and file arguments as kwargs like so: exec_cmd('load', merge=True, file='/path/to/file.txt') """


        if command == 'load':
            if kwargs:
                kwargs = dict(options=[kwargs])
        return self._exec_cmd(command, **kwargs)