What of the below is not a feature of API Notebooks?

An API Notebook is an interactive, web-based client built into Anypoint Exchange for exploring, testing, and learning about an API. It allows users to make live, authenticated calls to an API's endpoints and serves as a form of dynamic documentation. However, the notebook is a consumer of an API; it does not have the functionality to create a mock service for that API. Mocking is configured within API Designer to simulate an API's behavior before it is built.

A. API Notebooks are a form of interactive documentation, allowing users to see and execute live examples.

B. The notebook itself functions as a pre-built, configurable JavaScript client for making API requests.

D. A primary feature of API Notebooks is the ability to configure credentials and make authenticated calls to a live API implementation.

1. MuleSoft Documentation, "API Notebook". The documentation describes it as a tool to "create interactive tutorials for your API" and "make authenticated calls to the API." It does not mention creating mock services.

2. MuleSoft Documentation, "Mocking Service". This feature is explicitly tied to API Designer, stating, "You can enable the mocking service in API Designer to create a virtual, testable API." This clearly separates the mocking function from the API Notebook.

3. MuleSoft Official Training. (2021). Anypoint Platform Development: Fundamentals. Module 3: "Consuming APIs". This module covers using tools like API Notebook in Exchange to test and understand an API, positioning it as a consumption tool.