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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 createController(self, key, attributes, ipmi, printer=False):
 """ Function createController Create a controller node @param key: The host name or ID @param attributes:The payload of the host creation @param printer: - False for no creation progression message - True to get creation progression printed on STDOUT - Printer class containig a status method for enhanced print. def printer.status(status, msg, eol=eol) @return RETURN: The API result """

        if key not in self:
            self.printer = printer
            self.async = False
            # Create the VM in foreman
            self.__printProgression__('In progress',
                                      key + ' creation: push in Foreman',
                                      eol='\r')
            self.api.create('hosts', attributes, async=self.async)
            self[key]['interfaces'].append(ipmi)
            # Wait for puppet catalog to be applied
            # self.waitPuppetCatalogToBeApplied(key)
            self.reload()
            self[key]['build'] = 'true'
            self[key]['boot'] = 'pxe'
            self[key]['power'] = 'cycle'
        return self[key]