append(_:count:) Declarationmutating func append(_ bytes: UnsafePointer<UInt8>, count: Int) See AlsoCombining Sequence Elementsappend(_:)append(_:)append(_:)copyBytes(to:count:)copyBytes(to:count:)copyBytes(to:from:)copyBytes(to:from:)copyBytes(to:from:)enumerateBytes(_:)makeIterator()region(location:)subdata(in:)withUnsafeBytes(body:)