/**
 * Human-readable metrics formatting
 */
import type { AgentMetrics, ToolMetrics, LatencyMetrics, MetricsSummary } from './types';
/**
 * Format duration in milliseconds to human-readable string
 *
 * Examples:
 * - 123ms → "123ms"
 * - 1500ms → "1.5s"
 * - 65000ms → "1m 5s"
 * - 125000ms → "2m 5s"
 */
export declare function formatDuration(ms: number): string;
/**
 * Format duration with detailed breakdown
 * Shows milliseconds, seconds, and minutes if applicable
 */
export declare function formatDurationDetailed(ms: number): string;
/**
 * Format agent metrics for human reading
 * Generic implementation that works with any metadata structure
 */
export declare function formatAgentMetrics(metrics: AgentMetrics): string;
/**
 * Format tool metrics for human reading
 */
export declare function formatToolMetrics(metrics: ToolMetrics): string;
/**
 * Format latency metrics for human reading
 */
export declare function formatLatencyMetrics(metrics: LatencyMetrics): string;
/**
 * Format metrics summary for human reading
 * Generic implementation that includes custom metrics if present
 */
export declare function formatMetricsSummary(summary: MetricsSummary): string;
/**
 * Format a single metric entry with emoji and colors
 */
export declare function formatMetricEntry(type: 'agent' | 'tool' | 'latency', metrics: AgentMetrics | ToolMetrics | LatencyMetrics): string;
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