def extract_notification_payload(process_output):
        """
        Processes the raw output from Gatttool stripping the first line and the
            'Notification handle = 0x000e value: ' from each line
        @param: process_output - the raw output from a listen commad of GattTool
        which may look like this:
            Characteristic value was written successfully
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 30 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 32 20 48 3d 32 37 2e 32 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 31 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 32 20 48 3d 32 37 2e 33 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 31 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 31 20 48 3d 32 37 2e 34 00


            This method strips the fist line and strips the 'Notification handle = 0x000e value: ' from each line
        @returns a processed string only containing the values.
        """
        data = []
        for element in process_output.splitlines()[1:]:
            parts = element.split(": ")
            if len(parts) == 2:
                data.append(parts[1])
        return data
Processes the raw output from Gatttool stripping the first line and the
            'Notification handle = 0x000e value: ' from each line
        @param: process_output - the raw output from a listen commad of GattTool
        which may look like this:
            Characteristic value was written successfully
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 30 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 32 20 48 3d 32 37 2e 32 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 31 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 32 20 48 3d 32 37 2e 33 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 33 20 48 3d 32 37 2e 31 00
            Notification handle = 0x000e value: 54 3d 32 37 2e 31 20 48 3d 32 37 2e 34 00


            This method strips the fist line and strips the 'Notification handle = 0x000e value: ' from each line
        @returns a processed string only containing the values.