Method: Image upload form.
Method: Callback for image field in `image_upload` form.
Filter Hook: Can be used to modify `$args` before updating question
Filter Hook: Can be used to modify args before inserting question
Filter Hook: Filter question description before saving.
Filter Hook: Can be used to modify `$args` before updating answer
Filter Hook: Can be used to modify args before inserting answer
Filter Hook: Filter for modifying answer form `$args`.
Filter Hook: Filter question description before saving.
Action Hook: No description