text: 
  from __future__ import absolute_import
  
  from binascii import hexlify as hexlify
  from binascii import unhexlify as unhexlify
  
  def switch_endian(hex_string):
      return hexlify(unhexlify(hex_string)[::-1])
  
  def big_endian_hex(binary):
      return hexlify(binary[::-1])
  
  def little_endian_hex(binary):
      return hexlify(binary)
  