code: def decrypt_attributes(self, attribute_statement):
          
          #        _node_name = [
          #            "urn:oasis:names:tc:SAML:2.0:assertion:EncryptedData",
          #            "urn:oasis:names:tc:SAML:2.0:assertion:EncryptedAttribute"]
  
          for encattr in attribute_statement.encrypted_attribute:
              if not encattr.encrypted_key:
                  _decr = self.sec.decrypt(encattr.encrypted_data)
                  _attr = attribute_from_string(_decr)
                  attribute_statement.attribute.append(_attr)
              else:
                  _decr = self.sec.decrypt(encattr)
                  enc_attr = encrypted_attribute_from_string(_decr)
                  attrlist = enc_attr.extensions_as_elements("Attribute", saml)
                  attribute_statement.attribute.extend(attrlist)
docs: Decrypts possible encrypted attributes and adds the decrypts to the
          list of attributes.
  
          :param attribute_statement: A SAML.AttributeStatement which might
              contain both encrypted attributes and attributes.