def set_scan_parameters(self, scan_type=ScanType.ACTIVE, interval_ms=10, window_ms=10,
                            address_type=BluetoothAddressType.RANDOM, filter_type=ScanFilter.ALL):
        """"sets the le scan parameters

        Args:
            scan_type: ScanType.(PASSIVE|ACTIVE)
            interval: ms (as float) between scans (valid range 2.5ms - 10240ms)
                ..note:: when interval and window are equal, the scan
                    runs continuos
            window: ms (as float) scan duration (valid range 2.5ms - 10240ms)
            address_type: Bluetooth address type BluetoothAddressType.(PUBLIC|RANDOM)
                * PUBLIC = use device MAC address
                * RANDOM = generate a random MAC address and use that
            filter: ScanFilter.(ALL|WHITELIST_ONLY) only ALL is supported, which will
                return all fetched bluetooth packets (WHITELIST_ONLY is not supported,
                because OCF_LE_ADD_DEVICE_TO_WHITE_LIST command is not implemented)

        Raises:
            ValueError: A value had an unexpected format or was not in range
        """
        interval_fractions = interval_ms / MS_FRACTION_DIVIDER
        if interval_fractions < 0x0004 or interval_fractions > 0x4000:
            raise ValueError(
                "Invalid interval given {}, must be in range of 2.5ms to 10240ms!".format(
                    interval_fractions))
        window_fractions = window_ms / MS_FRACTION_DIVIDER
        if window_fractions < 0x0004 or window_fractions > 0x4000:
            raise ValueError(
                "Invalid window given {}, must be in range of 2.5ms to 10240ms!".format(
                    window_fractions))

        interval_fractions, window_fractions = int(interval_fractions), int(window_fractions)

        scan_parameter_pkg = struct.pack(
            ">BHHBB",
            scan_type,
            interval_fractions,
            window_fractions,
            address_type,
            filter_type)
        self.bluez.hci_send_cmd(self.socket, OGF_LE_CTL, OCF_LE_SET_SCAN_PARAMETERS,
                                scan_parameter_pkg)
sets the le scan parameters

        Args:
            scan_type: ScanType.(PASSIVE|ACTIVE)
            interval: ms (as float) between scans (valid range 2.5ms - 10240ms)
                ..note:: when interval and window are equal, the scan
                    runs continuos
            window: ms (as float) scan duration (valid range 2.5ms - 10240ms)
            address_type: Bluetooth address type BluetoothAddressType.(PUBLIC|RANDOM)
                * PUBLIC = use device MAC address
                * RANDOM = generate a random MAC address and use that
            filter: ScanFilter.(ALL|WHITELIST_ONLY) only ALL is supported, which will
                return all fetched bluetooth packets (WHITELIST_ONLY is not supported,
                because OCF_LE_ADD_DEVICE_TO_WHITE_LIST command is not implemented)

        Raises:
            ValueError: A value had an unexpected format or was not in range