# Class TExtension

OptimaJet.Workflow.BpmnPlugin.Model.TExtension

Namespace: [OptimaJet.Workflow.BpmnPlugin.Model](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/)

```csharp
public class TExtension
```

## Constructors

`public TExtension()` 

Initializes a new instance of the [TExtension](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TExtension/) class.

## Properties

`public Collection<TDocumentation> Documentation { get; }` 

`public bool DocumentationSpecified { get; }` 

Gets a value indicating whether the Documentation collection is empty.

`public XmlQualifiedName Definition { get; set; }` 

`public bool MustUnderstand { get; set; }` 

[Previous TExpression](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TExpression/) [Next TExtensionElements](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TExtensionElements/)