LanguageModelResponseProtocol.swift

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// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this

// file, You can obtain one at http://mozilla.org/MPL/2.0/

/// We need these compile time checks so the app can be built with pre‑iOS 26 SDKs.

/// Once our BR workflow switches to 26, we can remove them,

/// as the runtime @available checks will be enough.

#if canImport(FoundationModels)

import FoundationModels

import Foundation

/// Defines the response interface for language model outputs.

/// This used because `LanguageModelSession.Response` lacks a public initializer.

/// The protocol exposes `content` and `transcriptEntries` for mocking and testing.

@available(iOS 26, *)

protocol LanguageModelResponseProtocol {

    var content: String { get }

    var transcriptEntries: ArraySlice<Transcript.Entry> { get }

@available(iOS 26, *)

extension LanguageModelSession.Response: LanguageModelResponseProtocol

    where Content == String {}

#endif