void set_param_desc(const synfig::ParamDesc &x) { param_desc=x; }
const synfig::ParamDesc &get_param_desc() { return param_desc; }
void set_sensitive(bool x);
void set_param_desc(const synfig::ParamDesc &x) { param_desc=x; }
const synfig::ParamDesc &get_param_desc() { return param_desc; }
void set_sensitive(bool x);