/**
 * Contract registry — runtime resolution of extension-provided implementations.
 *
 * @module extensions/contracts
 */
/** Resolve path segments to an absolute path. */
export declare function resolve<T>(name: string): T;
/** Try to resolve. */
export declare function tryResolve<T>(name: string): T | undefined;
/** Register. */
export declare function register<T>(name: string, impl: T): void;
/** Unregister. */
export declare function unregister(name: string): void;
/** Reset. */
export declare function reset(): void;
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