# Write<T>(BinaryWriter, BlobAssetReference<T>)

> Serializes the blob asset data and writes the bytes to a BinaryWriter instance.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public static void Write<T>(this BinaryWriter binaryWriter, BlobAssetReference<T> blob) where T : unmanaged
```

### Parameters

**** (\[BinaryWriter]\(/engine/7000.0/script-reference/unity/entities/serialization/binarywriter)): An implementation of the BinaryWriter interface.**** (\[BlobAssetReference\<T>]\(/engine/7000.0/script-reference/unity/entities/blobassetreference1)): A reference to the blob asset to serialize.

### Remarks

Additional Resources: StreamBinaryWriter, [MemoryBinaryWriter](/engine/7000.0/script-reference/unity/entities/serialization/memorybinarywriter.md)