How to use the pynetdicom.pdu_primitives.A_ABORT function in pynetdicom

def to_primitive(self):
        """Return an A-ABORT or A-P-ABORT primitive from the current PDU.

        Returns
        -------
        pdu_primitives.A_ABORT or pdu_primitives.A_P_ABORT
            The primitive representation of the current PDU.
        """
        from pynetdicom.pdu_primitives import A_ABORT, A_P_ABORT

        # User initiated abort
        if self.source == 0x00:
            primitive = A_ABORT()
            primitive.abort_source = self.source

        # User provider primitive abort
        elif self.source == 0x02:
            primitive = A_P_ABORT()
            primitive.provider_reason = self.reason_diagnostic

        return primitive

- ``0x00`` - the DUL service user
            - ``0x02`` - the DUL service provider

        Raises
        ------
        ValueError
            If the `source` value is invalid.
        """
        if source not in [0x00, 0x02]:
            raise ValueError("Invalid 'source' parameter value")

        # The following parameters must be set for an A-ABORT primitive
        # (* sent in A-ABORT PDU):
        #    Abort Source*
        #    Provider Reason* (not significant with source 0x00)
        primitive = A_ABORT()
        primitive.abort_source = source

        self.dul.send_pdu(primitive)
        self.assoc.is_aborted = True
        self.assoc.is_established = False

def from_primitive(self, primitive):
        """Setup the current PDU using an A-ABORT or A-P-ABORT primitive.

        Parameters
        ----------
        primitive : pdu_primitives.A_ABORT or pdu_primitives.A_P_ABORT
            The primitive to use to set the current PDU field values.
        """
        from pynetdicom.pdu_primitives import A_ABORT, A_P_ABORT

        # User initiated abort
        if primitive.__class__ == A_ABORT:
            # The reason field shall be 0x00 when the source is DUL
            # service-user
            self.reason_diagnostic = 0
            self.source = primitive.abort_source

        # User provider primitive abort
        elif primitive.__class__ == A_P_ABORT:
            self.reason_diagnostic = primitive.provider_reason
            self.source = 2