#include <cstdarg>
#include <cstdint>
#include <cstdlib>
#include <new>
template<typename T>
struct Option;
template<typename T, typename E>
struct Result;
struct String;
template<typename T>
struct Vec;
extern "C" {
void root(const Vec<String> *a, const Option<int32_t> *b, const Result<int32_t, String> *c);
} // extern "C"