public function get_value() {
		$key     = $this->options_key ?: $this->id;
		$options = $this->options->get( $key );

		if ( $key === $this->id ) {
			return $options;
		} elseif ( isset( $options[ $this->id ] ) ) {
			return $options[ $this->id ];
		} else {
			return null;
		}
	}