# RepeatedFieldCopier<T>.DeepCopy(RepeatedField<T>, RepeatedField<T>, CopyContext)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.repeatedfieldcopier-1/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.repeatedfieldcopier-1/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Serializers/Orleans.Serialization.Protobuf/RepeatedFieldCopier.cs#L51-L55)

```csharp
public void DeepCopy(RepeatedField<T> input, RepeatedField<T> output, CopyContext context)
```

Clones members from `input` and copies them to `output`.

### Parameters

- `input` (`RepeatedField<T>`): The input.
- `output` (`RepeatedField<T>`): The output.
- `context` (`CopyContext`): The context.