'14px', 'font_family' => 'Arial, Helvetica, sans-serif', ]; $this->config = $config; } public function line($content, $tag = 'p') { $this->elements[] = [ 'type' => 'line', 'tag' => $tag, 'content' => $content, ]; return $this; } public function heading($content, $tag = 'h2') { $this->elements[] = [ 'type' => 'heading', 'tag' => $tag, 'content' => $content, ]; return $this; } public function button($url, $btnText, $style = 'primary') { $this->elements[] = [ 'type' => 'button', 'content' => $btnText, 'url' => $url, 'style' => $style ]; return $this; } public function url($url, $content) { $this->elements[] = [ 'type' => 'url', 'content' => $content, 'url' => $url, ]; return $this; } public function image($imageUrl, $alt = '') { $this->elements[] = [ 'type' => 'image', 'content' => $imageUrl, 'alt' => $alt, ]; return $this; } }