import type { Helia } from "helia";
import type { CID } from "multiformats/cid";
/**
 * Find other relays providing the network CID and
 * dial them. Tags peers to protect connections from
 * pruning. GossipSub mesh formation handles message
 * routing from there.
 */
export declare function findAndDialProviders(helia: Helia, netCID: CID, knownRelayPeerIds: Set<string>): Promise<void>;
/**
 * Discover and dial existing providers, then provide
 * ourselves on the network CID.
 */
export declare function provideAll(helia: Helia, netCID: CID, knownRelayPeerIds: Set<string>): Promise<void>;
/**
 * Periodically verify connectivity to known relay
 * peers. Re-dial any that have silently dropped.
 * Jittered interval (60-90s) prevents thundering
 * herd across relays.
 */
export declare function scheduleHealthCheck(helia: Helia, netCID: CID, knownRelayPeerIds: Set<string>): {
    clear: () => void;
};
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