export type CacheSourceIdentity = {
    type: "branch";
    branch: string;
} | {
    type: "release";
    releaseId: string;
} | {
    type: "environment";
    environmentName: string;
    releaseId: string;
};
export interface EncodedCacheSourceIdentity {
    type: CacheSourceIdentity["type"];
    /** Encoded variable segments only, safe to append to a colon-delimited key. */
    qualifier: string;
    /** Canonical source type plus encoded qualifier. */
    key: string;
}
/** Encode an exact content source without permitting delimiter collisions. */
export declare function encodeCacheSourceIdentity(identity: CacheSourceIdentity): EncodedCacheSourceIdentity;
//# sourceMappingURL=source-identity.d.ts.map