function makeMyType(genobj, new_type, options, gen_private, type_info) {
  // Prepare genobj for MS-Office:
  msdoc.makemsdoc(genobj, new_type, options, gen_private, type_info)
  gen_private.plugs.makeOfficeGenerator('mytype', 'mytype', {})

  // ----- API for ??? documents: -----
}
@brief Extend officegen object with ??? support.

This method extending the given officegen object to create ??? document.

@param[in] genobj The object to extend.
@param[in] new_type The type of object to create.
@param[in] options The object's options.
@param[in] gen_private Access to the internals of this object.
@param[in] type_info Additional information about this type.