import { RLNInstance } from "@waku/rln/dist/rln";
import { Encoder, Message, ProtoMessage } from "../interfaces";
export declare class RLNEncoder implements Encoder {
    contentTopic: string;
    private encoder;
    private rlnInstance;
    private index;
    private idKey;
    constructor(contentTopic: string, encoder: Encoder, rlnInstance: RLNInstance, index: number, idKey: Uint8Array);
    encode(message: Message): Promise<Uint8Array | undefined>;
    toRLNSignal(msg: Message): Uint8Array;
    encodeProto(message: Message): Promise<ProtoMessage | undefined>;
}