{

static std::unique_ptr<tagtransform_t>

make_tagtransform(options_t const *options, export_list const &exlist);

virtual ~tagtransform_t() = 0;

virtual std::unique_ptr<tagtransform_t> clone() const = 0;

virtual bool filter_tags(osmium::OSMObject const &o, int *polygon,

int *roads, taglist_t &out_tags,

bool strict = false) = 0;

virtual bool filter_rel_member_tags(taglist_t const &rel_tags,

osmium::memory::Buffer const &members,

rolelist_t const &member_roles,

int *make_boundary, int *make_polygon,

int *roads, taglist_t &out_tags,

bool allow_typeless = false) = 0;