import { ShardNamer } from "../abstract/ShardNamer";
/**
 * ShardNamer implementation for PG.
 */
export declare class PgShardNamer extends ShardNamer {
    /**
     * Synchronously extracts Shard number from an ID. Can also extract from PG
     * composite rows (to support composite IDs).
     */
    shardNoByID(id: string): number;
}
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