# InvokableCustomInitializerAttribute.MethodArgumentValue

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/orleans.invokablecustominitializerattribute/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/orleans.invokablecustominitializerattribute/properties/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Serialization.Abstractions/Annotations.cs#L154)

```csharp
public object? MethodArgumentValue
```

Gets or sets the value to pass to the custom initializer method.