code: def ciphers(from_suite=None):
          
          suite = from_suite or TLSCryptographySuite.objects.filter(
              'NIST').first()
          return suite.data.get('tls_cryptography_suites')
docs: This is a helper method that will return all of the cipher
          strings used in a specified TLSCryptographySuite or returns
          the system default NIST profile list of ciphers. This can
          be used as a helper to identify the ciphers to specify/add
          when creating a new TLSCryptographySuite.
          
          :rtype: dict