code: def modify(self, **kwargs):
          
  
          # Warn user about unhandled parameters
          for key in kwargs:
              if key not in ['email', 'cellphone', 'countrycode', 'countryiso',
                             'defaultsmsprovider', 'directtwitter',
                             'twitteruser', 'name']:
                  sys.stderr.write("'%s'" % key + ' is not a valid argument ' +
                                   'of <PingdomContact>.modify()\n')
  
          response = self.pingdom.request('PUT', 'notification_contacts/%s' % self.id, kwargs)
  
          return response.json()['message']
docs: Modify a contact.
  
          Returns status message
  
          Optional Parameters:
  
              * name -- Contact name
                      Type: String
  
              * email -- Contact email address
                      Type: String
  
              * cellphone -- Cellphone number, without the country code part. In
                  some countries you are supposed to exclude leading zeroes.
                  (Requires countrycode and countryiso)
                      Type: String
  
              * countrycode -- Cellphone country code (Requires cellphone and
                  countryiso)
                      Type: String
  
              * countryiso -- Cellphone country ISO code. For example: US (USA),
                  GB (Britain) or SE (Sweden) (Requires cellphone and
                  countrycode)
                      Type: String
  
              * defaultsmsprovider -- Default SMS provider
                      Type: String ['clickatell', 'bulksms', 'esendex',
                                    'cellsynt']
  
              * directtwitter -- Send tweets as direct messages
                      Type: Boolean
                      Default: True
  
              * twitteruser -- Twitter user
                      Type: String