/**
 * Whether an email belongs to a test identity on this deployment: the
 * built-in rules plus `testIdentity.emails` (`AGENT_NATIVE_TEST_IDENTITY_EMAILS`).
 * Test identities keep running every flow; metrics and non-auth email skip them.
 */
export declare function isTestIdentity(value: unknown): boolean;
/** `isTestIdentity` as a PostgreSQL/BigQuery boolean expression over `column`. */
export declare function testIdentitySql(column: string): string;