With 1.04 we have a new, prefered way to get the structure data type description through a new attribute on the DataType nodes.

For a while, servers will support both options, a dictionary and the attribute.

Clients should first try to read the attribute and fall back to the dictionary if the attribute is not available.

The problem is in mixed modes where most data types are provided through attibute AND dictionaries but a few data types only through dictionaries. As soon as one structure does not have the attribute, the client must read also the dictionaries.

Since the relation of a dictionary to a data type is not obvious, we should provide a way to skip dictionaries that expose their types already through attributes.

Such dictionaries shall provide a property that indicates that attributes are provided for the content.

It will be an optional property on the DataTypeDictionaryType but we should make it a shall for server providing attributes AND dictionaries.