PropertiesDialog::setMapCallback: Bitrix method

      
<?php 
//  Bitrix\Bizproc\Activity\PropertiesDialog :: setMapCallback()
//  /dist/bitrix/modules/bizproc/lib/activity/propertiesdialog.php:322

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

        
$this->mapCallback $callback;

        return 
$this;
    }