/** Options supported by this input format. */
map<string, shared_ptr<Option> > options();
/** Create an input using this input format.
/** Options supported by this input format. */
map<string, shared_ptr<Option> > options();
/** Create an input using this input format.
/** Options supported by this output format. */
map<string, shared_ptr<Option> > options();
/** Create an output using this format.
/** Options supported by this output format. */
map<string, shared_ptr<Option> > options();
/** Create an output using this format.