foreach (FacetItemField facetItem in data)
// facetName = "InStock" or some alias (if configured)
var facetName = facetItem.Name;
//facetType = FacetType.Field
var facetType = facetItem.FacetType;
foreach (FacetItemQuery facetItem in data)
// facetName = "AliasName"
var facetName = facetItem.Name;
//facetType = FacetType.Query
var facetType = facetItem.FacetType;
// nested = nested facet (if configured)
var nested = facetItem.Facets;
// quantity = quantity of item's value
var quantity = facetItem.Quantity;