_ArrayBufferProtocol
func withUnsafeBufferPointer<R, E>(_ body: (Swift.UnsafeBufferPointer<Self.Element>) throws(E) -> R) throws(E) -> R where E : Swift.Error
It's more difficult than it used to be to find what changed in Apple SDKs. This page is automatically generated and shows what is new in Swift in the macOS 15.4 SDK.