[Java SDK V2] How to distinguish if Metadata is file or folder

Hello,

I need to distunguish, if Metadata I got is file or folder. Is there any recommended way, how to do this? I came up just with using instanceof operator, here is a snippet from integration tests:

        final Metadata fileMetadata = client.files().getMetadata(destFile);
        assertTrue(fileMetadata instanceof FileMetadata);

        final Metadata folderMetadata = client.files().getMetadata(destFolder);
        assertTrue(folderMetadata instanceof FolderMetadata);

Is there any recomended way?

Thank you,

Michal