apply_filters( 'learndash_course_previous_step_id', int $previous_post_id, WP_Post $post, WP_Post $previous_post )
Filters previous step ID for the course.
apply_filters( 'learndash_course_previous_step_id', int $previous_post_id, WP_Post $post, WP_Post $previous_post )
Filters previous step ID for the course.