simply the name of the file.
    @type file: L{file} or L{bytes}

    @ivar bytesSent: An integer representing the number of bytes sent.
    @type bytesSent: L{int}

    @ivar completed: An integer representing whether the transfer has been
        completed or not.
    @type completed: L{int}

    @ivar connected: An integer representing whether the connection has been
        established or not.
    @type connected: L{int}
    i