LanguageModelSession.SessionProperty

struct · iOS 27.0+ · SDK 27.1

@propertyWrapper struct SessionProperty<Value>

A property wrapper that provides access to properties from within profiles, dynamic instructions, and tools. Use this to access properties across a language model session, like to access the session history: ```swift // Get a reference to the session history. @SessionProperty(\.history) var history ``` To create a custom session property, use ``SessionPropertyEntry()`` to define a custom key that you access with ``LanguageModelSession/SessionProperty``.

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