Creates a new folder in a specific course using the Canvas LMS API.
create_folder(canvas, course_id, folder_name, parent_folder_id = NULL)A confirmation message that the folder has been created.
A list containing the 'api_key' and 'base_url' for authentication.
The ID of the course in which to create the folder.
The name of the folder.
(Optional) The ID of the parent folder in which to create the folder.