sted.python.usage.Options}
    @ivar options: The L{twisted.python.usage.Options} instance defined for this
        command.

    @type cmdName: C{str}
    @ivar cmdName: The name of the command we're generating completions for.

    @type file: C{file}
    @ivar file: The C{file} to write the completion function to.  The C{file}
        must have L{bytes} I/O semantics.
    c