export declare function isContentScriptStaticallyRegistered(url: string): boolean;
export declare function isContentScriptDynamicallyRegistered(url: string): Promise<boolean>;
/**
Checks whether a URL will have the content scripts automatically injected.
It returns a promise that resolves with string indicating the type of injection ('static' or 'dynamic') or `false` if it won't be injected on the specified URL.
*/
export declare function isContentScriptRegistered(url: string): Promise<'static' | 'dynamic' | false>;