/**
 * Build the addInitScript source for the default popup shield.
 *
 * Injects a MutationObserver that hides overlay/popup elements via inline
 * styles. Inline !important always beats stylesheet !important (regardless of
 * specificity or load order), so page CSS can never override this shield.
 * Runs before any page JS on every navigation — deadlock-free, unlike
 * addLocatorHandler (see `EntryPointPageObject.installPageHooks`).
 */
export declare function buildPopupShieldInitScript(cssSelectors: string[]): string;
//# sourceMappingURL=popupShieldInitScript.d.ts.map