protected internal override long _GetLong(int index) => HeapByteBufferUtil.GetLong(this.array, index);
protected internal override long _GetLong(int index) => HeapByteBufferUtil.GetLong(this.Memory, this.Idx(index));
protected internal sealed override long _GetLong(int index) => HeapByteBufferUtil.GetLong(Memory, Idx(index));