{type	oess_1::db::storage::impl::stream_storage_dir_item_t
	{attr m_id	{of	oess_1::uint_t}}
	{attr m_description_chain	{of	oess_1::uint_t}}
}

{type	oess_1::db::storage::impl::stream_storage_dir_t
	{attr m_dir
		{stl-map {key std::string}}
		{of	oess_1::db::storage::impl::stream_storage_dir_item_t}
	}
}

