@Nullable
    @Override
    public MeshBeacon getMeshBeacon(final byte[] beaconData) {
        if (beaconData != null) {
            final int beaconType = beaconData[0];
            if (beaconType == 0x00) {
                return new UnprovisionedBeacon(beaconData);
            } else if (beaconType == 0x01) {
                return new SecureNetworkBeacon(beaconData);
            }
        }
        return null;
    }
Appends the PDUs that are segmented at gatt layer.

@param mtuSize mtu size supported by the device/node
@param pdu     pdu received by the provisioner
@return the combine pdu or returns null if not complete.
mesh/src/main/java/no/nordicsemi/android/mesh/MeshManagerApi.java