import type { ResolvedAutoUpdateConfig } from './config.js';
export interface AutoUpdateGitRefPlan {
    ref: string;
    tagName: string | null;
    verifyTagSignature: boolean;
    shouldVerifyTagSignature: boolean;
    fetchRef: string;
}
export declare function parseTagName(ref: string): string | null;
export declare function isValidRef(ref: string): boolean;
export declare function normalizeGitRefInput(ref: string): string;
export declare function resolveAutoUpdateGitRef(au: Pick<ResolvedAutoUpdateConfig, "branch"> & {
    ref?: string;
}, refOverride?: string): string;
export declare function resolveAutoUpdateVerifyTagSignature(override: boolean | undefined, configured: boolean | undefined): boolean;
export declare function resolveAutoUpdateGitRefPlan(au: Pick<ResolvedAutoUpdateConfig, "branch" | "verifyTagSignature"> & {
    ref?: string;
}, opts?: {
    refOverride?: string;
    verifyTagSignature?: boolean;
}): AutoUpdateGitRefPlan;
export declare function formatAutoUpdateTagVerificationWarning(plan: AutoUpdateGitRefPlan): string | null;
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