Method begin

include/jwt-cpp/jwt.h:2750–2750

			map_of_claims(typename json_traits::object_type json) : claims(std::move(json)) {}

			iterator begin() { return claims.begin(); }
			iterator end() { return claims.end(); }
			const_iterator cbegin() const { return claims.begin(); }
			const_iterator cend() const { return claims.end(); }