((Map<String, Object>) ((Map<String, Object>) outputObject.getObject()).get("bean")).get("massEffectAttachmentName")

This code is written in Java and is used to retrieve the value of the "massEffectAttachmentName" property from a nested Map object.

The code first retrieves the "bean" property from the outer Map object by calling the get() method and casting the returned value to another Map<String, Object> object. Then it retrieves the value of the "massEffectAttachmentName" property from the inner Map object by again calling the get() method and casting the returned value to an Object.

Finally, the entire expression is cast to a Map<String, Object> object to ensure that the value is of the correct type.