Method: Process question form submission.
Action Hook: Action triggered before processing answer form.
Filter Hook: Can be used to modify `$args` before updating answer
Filter Hook: Can be used to modify args before inserting answer
Method: Process comment form.
Action Hook: Action triggered before processing comment form.
Class: The form hooks.
Method: Register question form.
Filter Hook: Filter for modifying question form `$args`.
Method: Register answer form.