# Expand Virtual Data Model

### Flow Connections <a href="#flow-connections" id="flow-connections"></a>

* \[Input] In - starts the block's execution.
* \[Output] Out - activates when the block has finished its execution.

### Data Connections <a href="#data-connections" id="data-connections"></a>

* \[Input] Model (model) - virtual model object to be expanded.
* \[Output] Fields (multiple, any) - all the fields of the model (defined in its respective section, such as [External API Requests](https://appmaster.gitbook.io/docs/business-logic/external-api-requests)).