# IInvokable.GetArgument(int)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.invocation.iinvokable/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.invocation.iinvokable/methods/)

```csharp
public abstract object? GetArgument(int index)
```

Gets the argument at the specified index.

### Parameters

- `index` (`int`): The argument index.

### Returns

The argument at the specified index.