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class RangingApp {

    // Starts a ranging session on the initiator side.
    fun startRangingInitiator(
        context: Context,
        deviceHandle: DeviceHandle,
        executor: Executor,
        callback: RangingSessionCallback
    ) {

        // Get the RangingManager which is the entry point for ranging module.
        val manager = context.getSystemService(RangingManager::class.java)

        // Create a new RangingSession using the provided executor and callback.
        val session = manager.createRangingSession(executor, callback)

        // Create an OobInitiatorRangingConfig, which specifies the ranging parameters for
        // the initiator role.
        val config = OobInitiatorRangingConfig.Builder()
            .setFastestRangingInterval(Duration.ofMillis(100))
            .setSlowestRangingInterval(Duration.ofMillis(5000))
            .setRangingMode(RANGING_MODE_AUTO)
            .setSecurityLevel(SECURITY_LEVEL_BASIC)
            .addDeviceHandle(deviceHandle)
            .build()

        // Create a RangingPreference, which specifies the role (initiator) and
        // configuration for the ranging session.
        val preference =
            RangingPreference.Builder(DEVICE_ROLE_INITIATOR, config).build()

        // Start ranging session.
        session.start(preference)

        // If successful, the ranging data will be sent through callback#onResults

        // Stop ranging session
        session.stop()
    }

    // Starts a ranging session on the responder side.
    fun startRangingResponder(
        context: Context,
        deviceHandle: DeviceHandle,
        executor: Executor,
        callback: RangingSessionCallback
    ) {

        // Get the RangingManager which is the entry point for ranging module.
        val manager = context.getSystemService(RangingManager::class.java)

        // Create a new RangingSession using the provided executor and callback.
        val session = manager.createRangingSession(executor, callback)

        // Create an OobResponderRangingConfig, which specifies the ranging parameters for
        // the responder role.
        val config = OobResponderRangingConfig.Builder(deviceHandle).build()

        // Create a RangingPreference, which specifies the role (responder) and
        // configuration for the ranging session.
        val preference =
            RangingPreference.Builder(DEVICE_ROLE_RESPONDER, config).build()

        // Start the ranging session.
        session.start(preference)

        // Stop the ranging session
        session.stop()
    }
}

public class RangingApp {

    // Starts a ranging session on the initiator side.
    void startRangingInitiator(Context context, DeviceHandle deviceHandle, Executor executor, RangingSessionCallback callback) {

        // Get the RangingManager which is the entry point for ranging module.
        RangingManager manager = context.getSystemService(RangingManager.class);

        // Create a new RangingSession using the provided executor and callback.
        RangingSession session = manager.createRangingSession(executor, callback);

        // Create an OobInitiatorRangingConfig, which specifies the ranging parameters for
        // the initiator role.
        OobInitiatorRangingConfig config = new OobInitiatorRangingConfig.Builder()
                .setFastestRangingInterval(Duration.ofMillis(100))
                .setSlowestRangingInterval(Duration.ofMillis(5000))
                .setRangingMode(RANGING_MODE_AUTO)
                .setSecurityLevel(SECURITY_LEVEL_BASIC)
                .addDeviceHandle(deviceHandle)
                .build();

        // Create a RangingPreference, which specifies the role (initiator) and
        // configuration for the ranging session.
        RangingPreference preference =
                new RangingPreference.Builder(DEVICE_ROLE_INITIATOR, config).build();

        // Start ranging session.
        session.start(preference);

        // If successful, the ranging data will be sent through callback#onResults

        // Stop ranging session
        session.stop();

    }

    // Starts a ranging session on the responder side.
    void startRangingResponder(Context context,  DeviceHandle deviceHandle, Executor executor, RangingSessionCallback callback) {

        // Get the RangingManager which is the entry point for ranging module.
        RangingManager manager = context.getSystemService(RangingManager.class);

        // Create a new RangingSession using the provided executor and callback.
        RangingSession session = manager.createRangingSession(executor, callback);

        // Create an OobResponderRangingConfig, which specifies the ranging parameters for
        // the responder role.
        OobResponderRangingConfig config = new OobResponderRangingConfig.Builder(  deviceHandle).build();

        // Create a RangingPreference, which specifies the role (responder) and
        // configuration for the ranging session.
        RangingPreference preference =
                new RangingPreference.Builder(DEVICE_ROLE_RESPONDER, config).build();

        // Start the ranging session.
        session.start(preference);

        // Stop the ranging session
        session.stop();
    }
}