/**
 * GraphQLErrorMapper — Classifies @octokit/graphql errors into ido4 error types.
 *
 * Centralizes all error classification so the GraphQL client and repositories
 * don't need to understand raw @octokit error shapes.
 */
import type { RateLimitState } from './types.js';
export declare class GraphQLErrorMapper {
    /**
     * Map an @octokit/graphql error to the appropriate ido4 error.
     * Always throws — never returns.
     */
    static mapError(error: unknown, operation: string): never;
    /**
     * Extract rate limit state from response headers.
     * Returns null if the required headers are missing.
     */
    static extractRateLimitState(headers: Record<string, string>): RateLimitState | null;
    /**
     * Determine if an error is retryable.
     */
    static isRetryable(error: unknown): boolean;
    /** Parse a numeric header value. Returns null if missing or unparsable. */
    private static parseHeader;
    /** Parse reset date from headers, defaulting to 60s from now if missing. */
    private static parseResetDate;
}
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