src/Webpage/Traits/HasContent.php
public function append(string $key, $value)
    {
        $this->content->put($key, $value);

        return $this;
    }
public function append(string $key, $value)
    {
        $this->content->put($key, $value);

        return $this;
    }
public function append ( string $ key , $ value ) { $ this -> content -> put ( $ key , $ value ) ; return $ this ; }
Add new fields to the content

@param string $key
@param mixed $value
@return Model
Add new fields to the content