$attributes Block attributes. * @param string $content Block content. * @return string * @since 0.0.1 */ public function render( $attributes, $content = '' ) { unset( $content ); // Unused parameter. if ( empty( $attributes ) ) { return ''; } $markup_class = new Email_Markup( $attributes ); ob_start(); echo wp_kses( $markup_class->markup(), self::get_allowed_form_html() ); $output = ob_get_clean(); return false !== $output ? $output : ''; } }