import { CSSResult } from './css-result';
import { type TrustedValue } from './html';
/**
 * Marks a string as trusted CSS style text
 */
export declare function trustCSS(value: string): TrustedValue;
/**
 * Get performance metrics for css function
 */
export declare function getCssMetrics(): {
    callCount: number;
    totalTime: number;
    cacheHits: number;
    cacheMisses: number;
};
/**
 * Reset performance metrics for css function
 */
export declare function resetCssMetrics(): void;
/**
 * Clear CSS cache to free memory
 */
export declare function clearCssCache(): void;
/**
 * A template literal tag that creates a CSSResult with the given CSS string.
 * @param strings - The static strings from the template literal
 * @param values - The interpolated values from the template literal
 * @returns A CSSResult containing the processed CSS
 */
export declare function css(strings: TemplateStringsArray, ...values: unknown[]): CSSResult;
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