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# GKTransportType

The mechanism used to send messages to other players in a game session.

```
enum GKTransportType
```

## Topics

### Constants

[`GKTransportType.reliable`](/documentation/GameKit/GKTransportType/reliable)

The data is sent continuously until it is successfully received by the intended recipients or the connection times out.

[`GKTransportType.unreliable`](/documentation/GameKit/GKTransportType/unreliable)

The data is sent once and is not sent again if a transmission error occurs.


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