Reverse engineered Swift interface for the ServerLanguageModel API in Apple's FoundationModels framework

FoundationModels_ServerLanguageModel.swift

// The following code is reverse engineered from Apple's FoundationModels framework
//
// Primarily reconstructed using information from:
//   `swift demangle < "$(xcrun --sdk macosx --show-sdk-path)"/System/Library/Frameworks/FoundationModels.framework/FoundationModels.tbd`
//   `ipsw swift-dump /System/Volumes/Preboot/Cryptexes/OS/System/Library/dyld/dyld_shared_cache_arm64e /System/Library/Frameworks/FoundationModels.framework/Versions/A/FoundationModels --demangle`

public struct ServerLanguageModel {
    public struct `Protocol`: Equatable {
        enum Kind {
            case openAI
        }
        
        let kind: Self.Kind
        
        public static var openAICompletions: Self
    }
    
    let model: String
    let url: URL
    let headers: [String: String]
    let `protocol`: Self.`Protocol`
    let authenticator: Authenticator?
    let supportsGuidedGeneration: Bool
    
    public init(name: String, url: URL, headers: [String: String], protocol: Self.`Protocol`)
}

extension ServerLanguageModel {
    protocol Authenticator {
        // not sure what the requirements are
    }
}

extension LanguageModelSession {
    public init(model: ServerLanguageModel, tools: [any Tool], transcript: Transcript)
    
    public init(model: ServerLanguageModel, tools: [any Tool], instructions: Instructions?)
}