Class `FacetOptions` provides options for processing facet results of a query.

`FacetOptions` is defined in the `google.appengine.api.search` module.

## Introduction

Class `FacetOptions` provides options for processing facet results of a
query. Options include number of facets to discover, number of values for each facet and the depth
of the result to be considered for facet computation.

## Constructor