.. _doc_data_flag: Flag ==== Some asset types have properties that only look for the presence of a particular key, rather than a key-value pair. These are referred to as **flags**. Their value can be left empty, since flags do not have a value paired to them. For example, item assets check for the ``Pro`` flag. An item asset that included this flag is marked as a Steam economy item. .. code-block:: text Flag1 Flag2 Flag3