code: public void copyTo(int srcOffs, byte[] dst, int offs, int len) {
          arraycopy(bytes, srcOffs, dst, offs, len);
      }
docs: Copy {@code len} bytes from this string at offset {@code srcOffs} to the given array at the given offset.
  
  @param srcOffs the source offset
  @param dst     the destination
  @param offs    the destination offset
  @param len     the number of bytes to copy