# Codec_FSharpMapSurrogate<TKey, TValue> Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleanscodegen.orleans.serialization.codec-fsharpmapsurrogate-2/)

## Deserialize(Reader<TReaderInput>, FSharpMapSurrogate<TKey, TValue>) {#deserialize-1-ref-orleans-serialization-buffers-reader-treaderinput-ref-orleans-1add391e}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleanscodegen.orleans.serialization.codec-fsharpmapsurrogate-2/methods/deserialize-1-ref-orleans-serialization-buffers-reader-treaderinput-ref-orleans-1add391e/)

```csharp
public void Codec_FSharpMapSurrogate<TKey, Deserialize<TReaderInput>(ref Reader<TReaderInput> reader, scoped ref FSharpMapSurrogate<TKey, TValue> instance)
```

Deserializes the specified type.

### Parameters

- `reader` (`Reader<TReaderInput>`): The reader.
- `instance` (`FSharpMapSurrogate<TKey, TValue>`): The value.

## ReadValue(Reader&lt;TReaderInput&gt;, Field) {#readvalue-1-ref-orleans-serialization-buffers-reader-treaderinput-orleans-serial-566ca0ba}

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```csharp
public FSharpMapSurrogate<TKey, TValue> Codec_FSharpMapSurrogate<TKey, ReadValue<TReaderInput>(ref Reader<TReaderInput> reader, Field field)
```

Reads a value.

### Parameters

- `reader` (`Reader<TReaderInput>`): The reader.
- `field` (`Field`): The field.

### Returns

The value.

## Serialize(Writer&lt;TBufferWriter&gt;, FSharpMapSurrogate&lt;TKey, TValue&gt;) {#serialize-1-ref-orleans-serialization-buffers-writer-tbufferwriter-ref-orleans-s-7c7e4033}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleanscodegen.orleans.serialization.codec-fsharpmapsurrogate-2/methods/serialize-1-ref-orleans-serialization-buffers-writer-tbufferwriter-ref-orleans-s-7c7e4033/)

```csharp
public void Codec_FSharpMapSurrogate<TKey, Serialize<TBufferWriter>(ref Writer<TBufferWriter> writer, scoped ref FSharpMapSurrogate<TKey, TValue> instance)
```

Serializes the provided value.

### Parameters

- `writer` (`Writer<TBufferWriter>`): The writer.
- `instance` (`FSharpMapSurrogate<TKey, TValue>`): The value.

## WriteField(Writer&lt;TBufferWriter&gt;, uint, Type, FSharpMapSurrogate&lt;TKey, TValue&gt;) {#writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-6b8bdc88}

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```csharp
public void Codec_FSharpMapSurrogate<TKey, WriteField<TBufferWriter>(ref Writer<TBufferWriter> writer, uint fieldIdDelta, Type expectedType, FSharpMapSurrogate<TKey, TValue> value)
```

Writes a field.

### Parameters

- `writer` (`Writer<TBufferWriter>`): The writer.
- `fieldIdDelta` (`uint`): The field identifier delta.
- `expectedType` (`Type`): The expected type.
- `value` (`FSharpMapSurrogate<TKey, TValue>`): The value.