Method iteration_proxy

include/jwt/json/json.hpp:3937–3938

construct iteration proxy from a container

  public:
    /// construct iteration proxy from a container
    explicit iteration_proxy(typename IteratorType::reference cont) noexcept
        : container(cont) {}

    /// return iterator begin (needed for range-based for)
    iteration_proxy_value<IteratorType> begin() noexcept