import type { Client } from "@libsql/client";
export interface FederationStateRow {
    handle: string;
    fedRidHex: string;
    fedRidBytes: Uint8Array;
    lastSyncedAt: string;
}
export declare function readFederationState(db: Client, handle: string): Promise<FederationStateRow | null>;
export declare function listFederationStates(db: Client): Promise<FederationStateRow[]>;
export interface UpsertFederationStateArgs {
    handle: string;
    fedRidBytes?: Uint8Array;
    lastSyncedAt?: string;
}
export declare function upsertFederationState(db: Client, args: UpsertFederationStateArgs): Promise<FederationStateRow>;
export declare function deleteFederationState(db: Client, handle: string): Promise<void>;
export declare function remapFederationHandle(db: Client, fromHandle: string, toHandle: string, lastSyncedAt?: string): Promise<FederationStateRow | null>;
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