docs: def long_to_bytes(N, blocksize=1):
      """Given an input integer ``N``, ``long_to_bytes`` returns the representation of ``N`` in bytes.
      If ``blocksize`` is greater than ``1`` then the output string will be right justified and then padded with zero-bytes,
      such that the return values length is a multiple of ``blocksize``.
      """
  
      bytestring = hex(N)
      bytestring = bytestring[2:] if bytestring.startswith('0x') else bytestring
      bytestring = bytestring[:-1] if bytestring.endswith('L') else bytestring
      bytestring = '0' + bytestring if (len(bytestring) % 2) != 0 else bytestring
      bytestring = binascii.unhexlify(bytestring)
  
      if blocksize > 0 and len(bytestring) % blocksize != 0:
          bytestring = '\x00' * \
              (blocksize - (len(bytestring) % blocksize)) + bytestring
  
      return bytestring