hasattr(pdu, "nextPdu") always return False for multiple parts SMS

[kimseasok]

I've been trying to intercept the submit PDU and log the content to the database. However, I cannot access to the next part of the PDU. The below are the output of the print out console.

`jasmin | service_type: b''

jasmin | source_addr_ton: <AddrTon.ALPHANUMERIC: 6>

jasmin | source_addr_npi: <AddrNpi.UNKNOWN: 1>

jasmin | source_addr: b'PlasGateUAT'

jasmin | dest_addr_ton: <AddrTon.INTERNATIONAL: 2>

jasmin | dest_addr_npi: <AddrNpi.UNKNOWN: 1>

jasmin | destination_addr: b'855972432661'

jasmin | esm_class: EsmClass[mode: EsmClassMode.DEFAULT, type: EsmClassType.DEFAULT, gsmFeatures: {<EsmClassGsmFeatures.UDHI_INDICATOR_SET: 1>}]

jasmin | protocol_id: 0

jasmin | priority_flag: <PriorityFlag.LEVEL_0: 1>

jasmin | schedule_delivery_time: None

jasmin | validity_period: None

jasmin | registered_delivery: RegisteredDelivery[receipt: RegisteredDeliveryReceipt.NO_SMSC_DELIVERY_RECEIPT_REQUESTED, smeOriginatedAcks: set(), intermediateNotification: False]

jasmin | replace_if_present_flag: <ReplaceIfPresentFlag.DO_NOT_REPLACE: 1>

jasmin | data_coding: DataCoding[scheme: DataCodingScheme.DEFAULT, schemeData: DataCodingDefault.UCS2]

jasmin | sm_default_msg_id: 0

jasmin | short_message: b"\x05\x00\x03\x02\x02\x01Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text e"`