internal extern static bool WaitForLoadCompletion(ContentFile handle, int timeoutMs);
internal extern static bool ContentFile_IsHandleValid(ContentFile handle);
internal extern static LoadingStatus ContentFile_GetLoadingStatus(ContentFile handle);
internal extern static UnityEngine.Object [] ContentFile_GetObjects(ContentFile handle);
internal extern static UnityEngine.Object ContentFile_GetObject(ContentFile handle, UInt64 localIdentifierInFile);
internal extern static ContentFileUnloadHandle ContentFile_UnloadAsync(ContentFile handle);