void suggest(WordLangTuple const &, docstring_list &) override;
void stem(WordLangTuple const &, docstring_list &) override {}
void insert(WordLangTuple const &) override;
void suggest(WordLangTuple const &, docstring_list &) override;
void stem(WordLangTuple const &, docstring_list &) override {}
void insert(WordLangTuple const &) override;