/**
 * @deprecated Use `canUseDOM` from `@fluentui/utilities` instead.
 */
export declare let _isSSR: boolean;
/**
 * Helper to set ssr mode to simulate no window object returned from getWindow helper.
 *
 * @deprecated Use `canUseDOM` from `@fluentui/utilities` instead.
 */
export declare function setSSR(isEnabled: boolean): void;