type ManifestContentScript = NonNullable<chrome.runtime.Manifest['content_scripts']>[0];
/**
Exclude same-file injections from a manifest `content_script` array due to a change in the polyfill.
https://github.com/fregante/webext-dynamic-content-scripts/issues/62
*/
export declare function excludeDuplicateFiles(contentScripts: ManifestContentScript[], { warn }?: {
    warn?: boolean | undefined;
}): ManifestContentScript[];
export {};