I have a problem with my code 

```
export default class PdmNewModalPlist extends LightningElement {
    @api objectName;
    @api fieldName;
    @api apiName;
    @api recordTypeId;
    @track obj;
    @wire(getPicklistValues, { 
        recordTypeId:'$recordTypeId',
        fieldApiName: { 
            fieldApiName: *this.fieldName*, 
            objectApiName: *this.objectName*
        }
    })
    PicklistValues;
}

```

In marked places i want to call variables but that's don't work. Propably because 'this' context shows function not document. How i can change 'this' context or make this function works?