/**
* Check if any filter has been registered for a hook.
*
* @param string $tag The name of the filter hook.
* @param bool|callable $function_to_check optional.
*
* @return mixed If $function_to_check is omitted, returns boolean for whether the hook has anything registered.
* When checking a specific function, the priority of that hook is returned, or false if the function is not attached.
* When using the $function_to_check argument, this function may return a non-boolean value that evaluates to false
* (e.g.) 0, so use the === operator for testing the return value.
*/
public function hasFilter($tag, $function_to_check = false)
{
return HuradHook::has_filter($tag, $function_to_check);
}
