Function is_object

include/behaviortree_cpp/contrib/json.hpp:20659–20662

@brief return whether value is an object @sa https://json.nlohmann.me/api/basic_json/is_object/

    /// @brief return whether value is an object
    /// @sa https://json.nlohmann.me/api/basic_json/is_object/
    constexpr bool is_object() const noexcept
    {
        return m_data.m_type == value_t::object;
    }

    /// @brief return whether value is an array
    /// @sa https://json.nlohmann.me/api/basic_json/is_array/