| Class | LibrarianFailure | Base class for failures trying to use the libararian. |
| Class | UploadFailed | Undocumented |
| Class | DownloadFailed | Undocumented |
| Class | LibrarianServerError | An error indicating that the Librarian server is not responding. |
| Interface | IFileUploadClient | Upload API for the Librarian client. |
| Interface | IFileDownloadClient | Download API for the Librarian client. |
| Interface | ILibrarianClient | Interface for the librarian client. |
| Interface | IRestrictedLibrarianClient | A version of the client that connects to a restricted librarian. |