---
title: "copy(persistentIdentifier:remappedIdentifiers:)"
framework: swiftdata
role: symbol
role_heading: Instance Method
path: "swiftdata/datastoresnapshot/copy(persistentidentifier:remappedidentifiers:)"
---

# copy(persistentIdentifier:remappedIdentifiers:)

## Declaration

```swift
func copy(persistentIdentifier: PersistentIdentifier, remappedIdentifiers: [PersistentIdentifier : PersistentIdentifier]?) -> Self
```