code: public Vector3i set(int index, ByteBuffer buffer) {
          MemUtil.INSTANCE.get(this, index, buffer);
          return this;
      }
docs: Read this vector from the supplied {@link ByteBuffer} starting at the
  specified absolute buffer position/index.
  <p>
  This method will not increment the position of the given ByteBuffer.
  
  @param index
  the absolute position into the ByteBuffer
  @param buffer
  values will be read in <code>x, y, z</code> order
  @return this