Life is short, we use c++.
esv::i32 is the 32 bit signed integral type of esvcpp c++ api. It guarantees 32 bit signed integral. The type is automatically deduced, which is most likely int, but not always.
esv::i32 c++ example
#include <esvcpp/core.hpp> int main() { esv::i32 i = 123; esv::print("i=>", i); }