/**
 * CSS Import Collector - Request-scoped CSS import tracking for SSR
 *
 * Collects CSS import paths discovered during module loading using
 * AsyncLocalStorage for proper isolation between concurrent requests.
 *
 * Usage:
 *   const { result, cssImports } = await runWithCSSCollector(() => loadModules(...));
 *   // cssImports contains absolute paths to CSS files discovered during loading
 */
/** Canonical CSS read path paired with the authored CSS module identity. */
export interface CSSImportReference {
    readPath: string;
    moduleKey: string;
    /** Bound read captured by the dependency validator for contained files. */
    read?: () => Promise<string>;
}
/**
 * Run a function with CSS import collection enabled.
 * Returns the function result and all collected CSS import paths.
 */
export declare function runWithCSSCollector<T>(fn: () => T | Promise<T>): Promise<{
    result: T;
    cssImports: string[];
}>;
/**
 * Register a CSS import path discovered during module loading.
 * No-op if called outside of a runWithCSSCollector context.
 */
export declare function registerCSSImport(absolutePath: string, moduleKey?: string, read?: () => Promise<string>): void;
/**
 * Get all CSS imports collected so far in the current context.
 * Returns empty array if called outside of a runWithCSSCollector context.
 */
export declare function getCSSImports(): string[];
/** Return canonical CSS read paths with their authored module keys. */
export declare function getCSSImportReferences(): CSSImportReference[];
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