llms_current_user_can_edit_product()
Function: Verify if the current user can edit the given product id (course or membership).
Source: includes/llms.functions.core.php:484
LLMS_User_Permissions::filter_rest_user_query()
Method: Filter the WP_User_Query args to ensure that instructors can only see their students
Source: includes/class.llms.user.permissions.php:112