AccessoryWithTargetMediaState (hap-java 2.0.7-SNAPSHOT API)

```
public interface AccessoryWithTargetMediaState
```
Accessory with target media state characteristic TargetMediaStateCharacteristic.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.concurrent.CompletableFuture<TargetMediaStateEnum>`	`getTargetMediaState()`	Retrieves the target media state (see `TargetMediaStateEnum` for supported values).
`java.util.concurrent.CompletableFuture<java.lang.Void>`	`setTargetMediaState(TargetMediaStateEnum targetMediaState)`	Set the target media state (see `TargetMediaStateEnum` for supported values).
`void`	`subscribeTargetMediaState(HomekitCharacteristicChangeCallback callback)`	Subscribes to changes in the target media state.
`void`	`unsubscribeTargetMediaState()`	Unsubscribes from changes in the target media state.

- Method Detail
  - getTargetMediaState
```
java.util.concurrent.CompletableFuture<TargetMediaStateEnum> getTargetMediaState()
```
    Retrieves the target media state (see TargetMediaStateEnum for supported values).
    
    Returns:
    
    a future that will contain the target media state
  - setTargetMediaState
```
java.util.concurrent.CompletableFuture<java.lang.Void> setTargetMediaState(TargetMediaStateEnum targetMediaState)
```
    Set the target media state (see TargetMediaStateEnum for supported values).
    
    Parameters:
    
    targetMediaState - target media state
    
    Returns:
    
    a future that completes when the change is made
  - subscribeTargetMediaState
```
void subscribeTargetMediaState(HomekitCharacteristicChangeCallback callback)
```
    Subscribes to changes in the target media state.
    
    Parameters:
    
    callback - the function to call when the target media state changes.
  - unsubscribeTargetMediaState
```
void unsubscribeTargetMediaState()
```
    Unsubscribes from changes in the target media state.