import type { BacklinksAnalyzeResult, BacklinksEstimate, BacklinksSnapshot, KeywordResearchEstimate, KeywordResearchResponse, KeywordResearchResult } from "./types.js";
/**
 * Narrows a backlinks result to the free cost-only dry run returned for `estimateOnly: true`.
 * An estimate carries no `summary`, `history`, or `rows`.
 */
export declare function isBacklinksEstimate(result: BacklinksAnalyzeResult): result is BacklinksEstimate;
/** Narrows a backlinks result to the paid or cache-served snapshot. */
export declare function isBacklinksSnapshot(result: BacklinksAnalyzeResult): result is BacklinksSnapshot;
/**
 * Narrows a keyword research response to the free cost-only dry run returned for
 * `estimateOnly: true`. An estimate carries no `rows`, `fetched_at`, or source statuses.
 */
export declare function isKeywordResearchEstimate(response: KeywordResearchResponse): response is KeywordResearchEstimate;
/** Narrows a keyword research response to the completed result. */
export declare function isKeywordResearchResult(response: KeywordResearchResponse): response is KeywordResearchResult;
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