/**
 * Chrome and Edge implement `webExtension.install` and leave it disabled until
 * the browser is started with `--enable-unsafe-extension-debugging` and
 * `--remote-debugging-pipe`. The driver then reports `Method not available`.
 * Name the flags on that error so the failure is actionable.
 */
export declare function annotateWebExtensionError(err: unknown, command: 'webExtension.install' | 'webExtension.uninstall'): Error;
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