/**
 * Per-vendor exact-match query on the `tenx_hash` field.
 *
 * When the input is a Symbol Message, tenxHash(symbolSequence) is
 * byte-identical to the engine's emitted tenx_hash (cross-language
 * contract, conformance-proven), so a 10x-powered forwarder ships this
 * exact value on every matching event. An exact field match beats
 * content-token phrase search: no escaping, no per-vendor query-syntax
 * gaps (notably the CloudWatch FilterLogEvents `@`-syntax issue), and
 * no false positives from token coincidence.
 *
 * Shared by pattern_examples (probe) and event_lookup (one-line live
 * sample on the reverse cross-pillar lookup).
 */
import type { SiemId } from './pricing.js';
export declare function buildHashQuery(vendor: SiemId, hash: string, service?: string, severity?: string): string;