def __init__(self, connection_string):
        """
        Args:
            connection_string (str): database appropriate connection string
        """
        self.m_connection_string = connection_string
        self.m_all_fields = SerialBlock()
        self.combineAB()
        pass
def __init__ ( self , connection_string ) : self . m_connection_string = connection_string self . m_all_fields = SerialBlock ( ) self . combineAB ( ) pass
Args:
            connection_string (str): database appropriate connection string