Function find

include/behaviortree_cpp/contrib/json.hpp:19290–19300

    }

    iterator find(const key_type& key)
    {
        for (auto it = this->begin(); it != this->end(); ++it)
        {
            if (m_compare(it->first, key))
            {
                return it;
            }
        }
        return Container::end();
    }

    template<class KeyType, detail::enable_if_t<
                 detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value, int> = 0>