---
title: PropertyListSerialization.MutabilityOptions
framework: foundation
role: symbol
role_heading: Structure
path: foundation/propertylistserialization/mutabilityoptions
---

# PropertyListSerialization.MutabilityOptions

These constants specify mutability options in property lists.

## Declaration

```swift
struct MutabilityOptions
```

## Topics

### Constants

- [mutableContainers](foundation/propertylistserialization/mutabilityoptions/mutablecontainers.md)
- [mutableContainersAndLeaves](foundation/propertylistserialization/mutabilityoptions/mutablecontainersandleaves.md)

### Initializers

- [init(rawValue:)](foundation/propertylistserialization/mutabilityoptions/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Constants

- [PropertyListSerialization.PropertyListFormat](foundation/propertylistserialization/propertylistformat.md)
- [PropertyListSerialization.ReadOptions](foundation/propertylistserialization/readoptions.md)