/**
 * `chant dev rolling-upgrade <lexicon-dir>` command implementation.
 *
 * Detects rolling-spec drift for the aws, azure, and github lexicons. These
 * lexicons pin no version constant — "latest" is fetched on every regen. This
 * command regenerates from current-latest, diffs the produced API surface
 * against the committed baseline (surface.snapshot.json), and REPORTS the
 * result. It is a dry run: it never opens a PR, updates a branch, or writes the
 * baseline. PR automation and scheduling live in #527.
 *
 * The PR label an eventual automation would apply is derived from severity:
 *   additive → `minor`, breaking → `major`. This command only prints it.
 */
import { type RollingUpgradeResult } from "../../codegen/rolling-upgrade.js";
export interface RollingUpgradeCliOptions {
    /** Resolved path to the lexicon directory. */
    lexiconDir: string;
    /** Force re-fetch of the upstream spec (bypass cache). */
    force?: boolean;
    /** Print subprocess output while running. */
    verbose?: boolean;
}
/**
 * Run the rolling-upgrade check and return the result.
 * Returns a synthetic failed result when the directory is missing.
 */
export declare function runRollingUpgrade(opts: RollingUpgradeCliOptions): Promise<RollingUpgradeResult>;
/**
 * Map surface severity to the semver PR label an upgrade would carry.
 * additive → minor, breaking → major, none → none.
 */
export declare function severityToLabel(severity: RollingUpgradeResult["severity"]): string;
/**
 * Print the rolling-upgrade result to stdout.
 */
export declare function printRollingUpgradeResult(result: RollingUpgradeResult, json: boolean): void;
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