Gets the value of the external instance variable identified with the var argument. The only instance variables that can be retrieved are those defined as External Variables. IMPORTANT: Some variables, such as @see VarDefinition#ACTIVITY_ID, can be localized, but through this method you will get always its default value.
| Name | Type | Description | Mode |
|---|---|---|---|
| var | String | The id of the variable whose value is required | in |