Apply a closure to a method in `Libraries`.
Parameters
- string $method The name of the method to apply the closure to.
- closure $filter The closure that is used to filter the method.
Returns
voidSource
public static function applyFilter($method, $filter = null) {
if (!isset(static::$_methodFilters[$method])) {
static::$_methodFilters[$method] = array();
}
static::$_methodFilters[$method][] = $filter;
}