Thetype exposes the following members.
The matching algorithm should give this item no special treatment. Ordinary CompletionProviders typically specify this.
The matching algorithm will tend to prefer this item unless a dramatically better text-based match is available. With no filter text, this item (or the first item alphabeitcally with this priority) should always be selected. test This is used for specific IDE scenarios like "Object creation preselection" or "Enum preselection" or "Completion list tag preselection".