import * as React from 'react';
import type { AgUsage } from '../types.js';
export interface UsageMeterProps {
    /** Token usage to display. */
    usage: AgUsage;
    /** 'compact' hides zero token counts; 'full' lists every count. */
    format?: 'compact' | 'full' | undefined;
    /** BCP 47 locale used for formatting and parsing. */
    locale?: string | undefined;
    /** Class name merged onto the root element. */
    className?: string | undefined;
}
/**
 * REQ-SURF-126: server module (no directive, no hooks). Token counts use
 * `Intl.NumberFormat` (compact or full notation), cost is USD with ≤4
 * fraction digits. With `contextWindow`, the gauge is CMP `Meter` (the
 * client boundary: Meter.client.tsx carries 'use client'; every prop passed
 * to it is serializable) over (input+output)/contextWindow — `warning` ≥80%,
 * `critical` ≥95%, stated in text, not colour only. Meter's low/high/optimum
 * map the same thresholds to its intent (low-is-good: optimum 0).
 */
export declare function UsageMeter({ usage, format, locale, className }: UsageMeterProps): React.JSX.Element;
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