Filter
import type { Filter } from "https://googleapis.deno.dev/v1/cloudsearch:v1.ts";
A generic way of expressing filters in a query, which supports two approaches: 1. Setting a ValueFilter. The name must match an operator_name defined in the schema for your data source. 2. Setting a CompositeFilter. The filters are evaluated using the logical operator. The top-level operators can only be either an AND or a NOT. AND can appear only at the top-most level. OR can appear only under a top-level AND.