Response container for category histograms. Only returned when one or more category histograms are returned. A category histogram is not returned if there are no matching items or if the search is restricted to a single leaf category.
Note: The category IDs returned for items in search results are for the leaf categories in which the items are listed. If you use these category IDs as input, the response will not return a category histogram.
Note: When searching the eBay Motors site, category histograms may not be available for some parent categories. In these cases, aspect histograms should be used to refine search results. This behavior is consistent with eBay Motors site search behavior.
See the Field Index to learn which calls use categoryHistogramContainer.