# MembershipTableTestRunner.ReadAll_SelectsPresentAndAbsentIdentities(CancellationToken)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.clustering.testkit/orleans.clustering.testkit.membershiptabletestrunner/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.clustering.testkit/orleans.clustering.testkit.membershiptabletestrunner/methods/)

[Source](https://github.com/dotnet/orleans/blob/fbe240c34e9a1389ca5ab2d52f292ed8749ea530/src/Orleans.Clustering.TestKit/MembershipTableTestRunner.cs#L265-L279)

```csharp
public Task ReadAll_SelectsPresentAndAbsentIdentities(CancellationToken cancellationToken = default(CancellationToken))
```

G15: full snapshots select distinct generations, other endpoints, and absent identities.

### Parameters

- `cancellationToken` (`CancellationToken`)