export interface OptionalPeerLogger {
    warn(message: string): void;
}
export type OptionalPeer<T> = {
    status: 'loaded';
    module: T;
} | {
    status: 'absent';
} | {
    status: 'broken';
    error: Error;
};
export declare function resolveOptionalPeer<T = unknown>(specifier: string): OptionalPeer<T>;
export declare function loadOptionalPeer<T = unknown>(specifier: string, logger?: OptionalPeerLogger): T | undefined;