---
title: SerializationRequirement
framework: distributed
role: symbol
role_heading: Associated Type
path: distributed/distributedtargetinvocationdecoder/serializationrequirement
---

# SerializationRequirement

The serialization requirement that the types passed to decodeNextArgument are required to conform to. The type returned by decodeReturnType is also expected to conform to this associated type requirement.

## Declaration

```swift
associatedtype SerializationRequirement
```