export type LoaderCause = {
    kind: string;
    surface?: string;
    detail?: string;
};
export type LoaderActivitySeam = {
    emit?: (spec: Record<string, unknown>) => void;
    scope?: <T>(cause: LoaderCause, fn: () => T) => T;
    env?: () => Record<string, string>;
};
export declare function setActivitySeam(seam: LoaderActivitySeam | null | undefined): void;
export declare function emitLoaderActivity(spec: Record<string, unknown>): void;
export declare function withLoaderCause<T>(cause: LoaderCause, fn: () => T): T;
export declare function loaderActivityEnv(): Record<string, string>;
export declare function spawnEnv(extra?: Record<string, string>): Record<string, string>;
export declare function emitPluginActivated(pluginName: string, details?: Record<string, unknown>): void;