Lookups is a collection of lookups and can represent the values of a multi-select lookup.
|  Add | Adds the item to the collection at the specified position. | 
|  Clone | Creates a copy of the object. | 
|  CloneFrom | Copies the content to this object from another object. | 
|  GetLookupByItem | Gets lookup by item ID. | 
|  GetLookupIndexByItem | Gets lookup index by item ID. -1 indicates that item was not found. | 
|  Remove | Removes the item at the specified position from the collection. | 
|  Count | The number of items in the collection. | 
|  Item | Accesses the item at the specified position in the collection. |