'Changes an existing application\'s name.
:type application_name: string
:param application_name: The current name of the application that you
want to change.
:type new_application_name: string
:param new_application_name: The new name that you want to change the
application to.'

def update_application(self, application_name=None, new_application_name=None):

    params = {}
    if (application_name is not None):
        params['applicationName'] = application_name
    if (new_application_name is not None):
        params['newApplicationName'] = new_application_name
    return self.make_request(action='UpdateApplication', body=json.dumps(params))
