FML/Components/CheckBoxDesign.php
public function setImageUrl($imageUrl)
    {
        $this->style    = null;
        $this->subStyle = null;
        $this->imageUrl = (string)$imageUrl;
        return $this;
    }
public function setImageUrl($imageUrl)
    {
        $this->style    = null;
        $this->subStyle = null;
        $this->imageUrl = (string)$imageUrl;
        return $this;
    }
public function setImageUrl ( $ imageUrl ) { $ this -> style = null ; $ this -> subStyle = null ; $ this -> imageUrl = ( string ) $ imageUrl ; return $ this ; }
Set the image url

@api
@param string $imageUrl Image url
@return static
Set the image url