private function update_components( $components )
    {
        foreach ( $components as $component ) 
        {
            // Update each component in the composite collection
            if ( $component instanceof UI\Components\Composite )
            {
                $this->update_components( $component->components );
            }
            
            // Update individual fields, as well as the composite parent field.
            if ( $component instanceof UI\ValueComponentInterface )
            {
                $this->update_component( $component );
            }
        }
    }