def METHOD_NAME(self, commandModule, commandDict):
    """Loads and executes commands.
    :param str commandModule: Name of the command (e.g. 'Downtime')
    :param dict commandDict: dictionary of {'CommandClass':{arguments}}
    """
    commandName = list(commandDict)[0]
    commandArgs = commandDict[commandName]
    commandTuple = (f"{commandModule}Command", f"{commandName}Command")
    commandObject = self.cCaller.commandInvocation(commandTuple, pArgs=commandArgs, clients=self.clients)
    if not commandObject["OK"]:
        self.log.error(f"Error initializing {commandName}")
        return commandObject
    commandObject = commandObject["Value"]
    # Set master mode
    commandObject.masterMode = True
    self.log.info(f"{commandModule}/{commandName}")
    return S_OK(commandObject)