API Reference > imodeljs-backend > IModelHost > FileNameResolver > tryResolveKey tryResolveKey Method Resolve a file name from the specified key. tryResolveKey(_fileKey: string): undefined | string Parameter Type Description _fileKey string The key that identifies the file name in a Map or other similar data structure. Returns - undefined | string The resolved file name or undefined if not found. Defined in core/backend/src/IModelHost.ts Line 664 Last Updated: 12 June, 2024