PropertiesDialog::setRenderer: Bitrix method

      
<?php 
//  Bitrix\Bizproc\Activity\PropertiesDialog :: setRenderer()
//  /dist/bitrix/modules/bizproc/lib/activity/propertiesdialog.php:394

    
public function setRenderer($callable)
    {
        if (!
is_callable($callable))
            throw new 
ArgumentException('Wrong callable argument.');

        
$this->renderer $callable;
    }