A query list block represents a special query block that will list a set of value for a given filter.
In example, if your SearchProvider has a filter named color for which the value can be yellow, red or pink. Then you'll use the QueryListBlockAttribute to have this filter be displayed as a block that when clicked will show a fixed set of values to be picked from.
| Apply | Apply proposition to the block. |
| GetPropositions | Returns propositions when the list block is clicked. |