Initializer
init(maxFrameSize:shouldUpgrade:onUpgrade:)
@preconcurrency init(maxFrameSize: WebSocketMaxFrameSize, shouldUpgrade: @escaping @Sendable () -> EventLoopFuture<HTTPHeaders?>, onUpgrade: @escaping @Sendable (WebSocket) -> ())Initializer
@preconcurrency init(maxFrameSize: WebSocketMaxFrameSize, shouldUpgrade: @escaping @Sendable () -> EventLoopFuture<HTTPHeaders?>, onUpgrade: @escaping @Sendable (WebSocket) -> ())