private byte[] createInvitePDU() {

        final byte[] data = new byte[3];
        data[0] = MeshManagerApi.PDU_TYPE_PROVISIONING; //Provisioning Opcode;
        //noinspection ConstantConditions
        data[1] = TYPE_PROVISIONING_INVITE; //PDU type in
        data[2] = (byte) attentionTimer;
        return data;
    }
Generates the invitePDU for provisioning based on the attention timer provided by the user.
mesh/src/main/java/no/nordicsemi/android/mesh/provisionerstates/ProvisioningInviteState.java