## getInnerDerivedIdentifierExpression() function  
**Signature:**  
```typescript
export declare function getInnerDerivedIdentifierExpression(expression: string): string | undefined;
```

## Parameters  
| Parameter  | Type   | Description |  
| ---       | ---    | ---         |  
| expression | string |            |

**Returns:**  
string | undefined

- [getInnerDerivedIdentifierExpression() function](/content/docs/sdk/core.getinnerderivedidentifierexpression#getinnerderivedidentifierexpression-function/index.html)  
- [Parameters](/content/docs/sdk/core.getinnerderivedidentifierexpression#parameters/index.html)