# Copier_ReadOnlyCollectionSurrogate<T> Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleanscodegen.orleans.serialization.codecs.copier-readonlycollectionsurrogate-1/)

## DeepCopy(ReadOnlyCollectionSurrogate<T>, CopyContext) {#deepcopy-orleans-serialization-codecs-readonlycollectionsurrogate-t-orleans-seri-b3fcca51}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleanscodegen.orleans.serialization.codecs.copier-readonlycollectionsurrogate-1/methods/deepcopy-orleans-serialization-codecs-readonlycollectionsurrogate-t-orleans-seri-b3fcca51/)

```csharp
public ReadOnlyCollectionSurrogate<T> DeepCopy(ReadOnlyCollectionSurrogate<T> result, CopyContext context)
```

Creates a deep copy of the provided input.

### Parameters

- `result` (`ReadOnlyCollectionSurrogate<T>`): The input.
- `context` (`CopyContext`): The context.

### Returns

A copy of `input`.