The TagResource api call method does not seem to be available.  Get a 404 (NOT FOUND) when calling this method.
concurrency_data = {'ReservedConcurrentExecutions': 10}
            response = self.client.put('/2017-10-31/functions/{0}/concurrency'.format(self.FUNCTION_NAME),
                                       data=json.dumps(concurrency_data))
            result = json.loads(response.get_data())
            self.assertDictEqual(concurrency_data, result)
    def test_concurrency_get_function(self):
        with self.app.test_request_context():
            self._create_function(self.FUNCTION_NAME)
            
            
            
            concurrency_data = {'ReservedConcurrentExecutions': 10}
            self.client.put('/2017-10-31/functions/{0}/concurrency'.format(self.FUNCTION_NAME),
                            data=json.dumps(concurrency_data))
            response = self.client.get('{0}/functions/{1}'.format(lambda_api.PATH_ROOT, self.FUNCTION_NAME))
            result = json.loads(response.get_data())
            self.assertTrue('Concurrency' in result)
            self.assertDictEqual(concurrency_data, result['Concurrency'])
    def _create_function(self, function_name):
        arn = lambda_api.func_arn(function_name)
        lambda_api.arn_to_lambda[arn] = LambdaFunction(arn)
        lambda_api.arn_to_lambda[arn].versions = {'$LATEST': {'CodeSize': self.CODE_SIZE}}
        lambda_api.arn_to_lambda[arn].handler = self.HANDLER
        lambda_api.arn_to_lambda[arn].runtime = self.RUNTIME
        lambda_api.arn_to_lambda[arn].timeout = self.TIMEOUT
        lambda_api.arn_to_lambda[arn].envvars = {}