$object = new Varien_Object(); $object->setData('name', 'John'); $object->setData('age', 30);This example creates a `Varien_Object` and sets two properties: `name` and `age`. `setData` sets the value of the property given by the first argument to the value given by the second argument. This method is part of the Varien package library, which is a set of classes and tools for Magento developers. Magento is built on top of the Varien library, which provides a lot of functionality and tools that developers can use to build customized solutions. The Varien_Object itself is used throughout Magento to represent generic entities and provides a set of methods for working with these entities.