export interface PostgresScriptRows extends Array<Record<string, unknown>> {
    count?: number;
}
export interface PostgresScriptQueryOptions {
    /**
     * Have the server refuse text with more than one statement. Set it for
     * agent-written SQL, so the database enforces what the guards checked.
     */
    singleStatement?: boolean;
}
export interface PostgresScriptClient {
    unsafe(sql: string, args?: unknown[], options?: PostgresScriptQueryOptions): Promise<PostgresScriptRows>;
    begin<T>(fn: (tx: PostgresScriptClient) => Promise<T>): Promise<T>;
    end(): Promise<void>;
}
export declare function setRawDbStatementTimeout(client: Pick<PostgresScriptClient, "unsafe">): Promise<void>;
export declare function withPostgresStatementDeadline(client: Pick<PostgresScriptClient, "unsafe">, timeoutMs?: number): Pick<PostgresScriptClient, "unsafe">;
export declare function createPostgresScriptClient(url: string): Promise<PostgresScriptClient>;