void header_add_phone (Gom_ctxt header, const char* phone);
void header_add_to_note(NL_TYPE type, Gom_ctxt header, const char* str);
void header_add_user_data(Gom_ctxt ctxt, struct user_data* data);
void header_add_phone (Gom_ctxt header, const char* phone);
void header_add_to_note(NL_TYPE type, Gom_ctxt header, const char* str);
void header_add_user_data(Gom_ctxt ctxt, struct user_data* data);