WP_Customize_Selective_Refresh::add_partial( WP_Customize_Partial|string $id, array $args = array() ): WP_Customize_Partial

95	public function add_partial( $id, $args = array() ) {96		if ( $id instanceof WP_Customize_Partial ) {97			$partial = $id;98		} else {99			$class = 'WP_Customize_Partial';100 101			/** This filter is documented in wp-includes/customize/class-wp-customize-selective-refresh.php */102			$args = apply_filters( 'customize_dynamic_partial_args', $args, $id );103 104			/** This filter is documented in wp-includes/customize/class-wp-customize-selective-refresh.php */105			$class = apply_filters( 'customize_dynamic_partial_class', $class, $id, $args );106 107			$partial = new $class( $this, $id, $args );108		}109 110		$this->partials[ $partial->id ] = $partial;111		return $partial;112	}