import { IProvider } from "./_provider";
/**
 * Provider with optional metadata about the injection target
 * Used to pass parameter names to toClass/toFunc providers
 */
export interface IProviderWithMetadata<T> {
    provider: IProvider<T>;
    target?: string;
}
/**
 * Type guard to check if a value is a provider with metadata
 */
export declare function isProviderWithMetadata<T>(value: any): value is IProviderWithMetadata<T>;
/**
 * Extract provider from either raw provider or metadata wrapper
 */
export declare function extractProvider<T>(providerOrMeta: IProvider<T> | IProviderWithMetadata<T>): IProvider<T>;
/**
 * Extract target name from provider metadata if available
 */
export declare function extractTarget<T>(providerOrMeta: IProvider<T> | IProviderWithMetadata<T>): string | undefined;