import { TalkerSentence } from "../../types/sentences/TalkerSentence";
import { RawNmeaSentence } from "../../types/sentences/RawNmeaSentence";
export declare class RSA extends TalkerSentence {
    static readonly ID: string;
    constructor(data: RawNmeaSentence);
    get rudder(): number;
    get starboardRudder(): number;
    get portRudder(): number;
    get valid(): boolean;
    get invalidReason(): null | string;
}