/**
 * @fileoverview Shared Open Charge Map attribution string and the reliability-note helper —
 * plain-prose caveats derived from observable facts (verification age, operational flag,
 * fault-vs-positive comment counts). No synthetic score (per the no-fabricated-signal rule).
 * @module services/openchargemap/attribution
 */
import type { NormalizedComment } from './types.js';
/** Mandatory CC BY 4.0 attribution, surfaced in every tool's output. */
export declare const ATTRIBUTION = "Station data \u00A9 Open Charge Map contributors, licensed under CC BY 4.0 (openchargemap.org).";
/**
 * Compose a plain-prose reliability caveat from observable facts, or undefined when there is
 * nothing to flag (status fresh, operational, no fault reports).
 */
export declare function buildReliabilityNote(input: {
    status: string | undefined;
    isOperational: boolean | undefined;
    dateLastVerified: string | null | undefined;
    comments: NormalizedComment[] | undefined;
}): string | undefined;
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