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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 DbGetServerNameList(self, argin):
 """ Returns the list of server names found for the wildcard specified. It returns only the server executable name without instance name as DbGetServerList. :param argin: wildcard for server names. :type: tango.DevString :return: server names found. :rtype: tango.DevVarStringArray """

        self._log.debug("In DbGetServerNameList()")
        argin = replace_wildcard(argin)
        return self.db.get_server_name_list(argin)