def decrypt_url(f_url):
                 for k in (key, 'IFYOUWANTTHEARTISTSTOGETPAIDDONOTDOWNLOADFROMMIXCLOUD'):
                     decrypted_url = self._decrypt_xor_cipher(k, f_url)
             def decrypt_url(f_url):
                 for k in (key, 'IFYOUWANTTHEARTISTSTOGETPAIDDONOTDOWNLOADFROMMIXCLOUD'):
                     decrypted_url = self._decrypt_xor_cipher(k, f_url)