code: def add_contact(self, contact_id, scope='contact/invite'):
          
          return _put(
              token=self.oauth.get_user_token(scope),
              uri='/user/socialgraph/contact/' + urllib.quote(contact_id)
          )
docs: Add a contact
          contact_id can either be the mxit ID of a service or a Mxit user
          User authentication required with the following scope: 'contact/invite'