/**
 * SPI Dependency Injection Tokens
 *
 * Tokens for registering and resolving extension points
 */
/**
 * Token for custom FileSystem middleware
 * Can be registered multiple times for multiple middleware instances
 */
export declare const FILESYSTEM_MIDDLEWARE_TOKEN: unique symbol;
/**
 * Token for custom path resolver
 * Only one resolver should be registered (replaces default)
 */
export declare const PATH_RESOLVER_TOKEN: unique symbol;
/**
 * Token for custom access control
 * Only one access control should be registered (replaces default)
 */
export declare const ACCESS_CONTROL_TOKEN: unique symbol;
/**
 * Token for FileInfo enricher registry
 * Used to register enrichers that add extension data to FileInfo responses
 */
export declare const FILE_INFO_ENRICHER_REGISTRY_TOKEN: unique symbol;
/**
 * Token for individual FileInfo enrichers
 * Can be registered multiple times for multiple enricher instances
 */
export declare const FILE_INFO_ENRICHER_TOKEN: unique symbol;
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