import { BinaryReader, BinaryWriter } from "@bufbuild/protobuf/wire";
export interface VehicleState {
    $type: "keelson.VehicleState";
    /** The source timestamp of the state report */
    timestamp: Date | undefined;
    state: VehicleState_State;
}
/**
 * Vehicle-agnostic operational lifecycle / severity state. Maps 1:1 from
 * MAVLink HEARTBEAT MAV_STATE, but the values are universal operational
 * concepts (not a MAVLink-specific shape): any vehicle connector can
 * publish this. The severity tail (CRITICAL / EMERGENCY / TERMINATED) is
 * the failsafe axis that per-sensor health (sensor_status) cannot express.
 */
export declare enum VehicleState_State {
    /** STATE_UNKNOWN - boot/uninitialised or indeterminate */
    STATE_UNKNOWN = 0,
    STATE_BOOTING = 1,
    STATE_CALIBRATING = 2,
    /** STATE_STANDBY - ready, not active */
    STATE_STANDBY = 3,
    /** STATE_ACTIVE - armed / operating normally */
    STATE_ACTIVE = 4,
    /** STATE_CRITICAL - non-normal but still controllable */
    STATE_CRITICAL = 5,
    /** STATE_EMERGENCY - mayday */
    STATE_EMERGENCY = 6,
    /** STATE_SHUTDOWN - powering off */
    STATE_SHUTDOWN = 7,
    /** STATE_TERMINATED - flight/operation terminated */
    STATE_TERMINATED = 8,
    UNRECOGNIZED = -1
}
export declare function vehicleState_StateFromJSON(object: any): VehicleState_State;
export declare function vehicleState_StateToJSON(object: VehicleState_State): string;
export declare const VehicleState: MessageFns<VehicleState, "keelson.VehicleState">;
type Builtin = Date | Function | Uint8Array | string | number | boolean | undefined;
type DeepPartial<T> = T extends Builtin ? T : T extends globalThis.Array<infer U> ? globalThis.Array<DeepPartial<U>> : T extends ReadonlyArray<infer U> ? ReadonlyArray<DeepPartial<U>> : T extends {} ? {
    [K in Exclude<keyof T, "$type">]?: DeepPartial<T[K]>;
} : Partial<T>;
type KeysOfUnion<T> = T extends T ? keyof T : never;
type Exact<P, I extends P> = P extends Builtin ? P : P & {
    [K in keyof P]: Exact<P[K], I[K]>;
} & {
    [K in Exclude<keyof I, KeysOfUnion<P> | "$type">]: never;
};
interface MessageFns<T, V extends string> {
    readonly $type: V;
    encode(message: T, writer?: BinaryWriter): BinaryWriter;
    decode(input: BinaryReader | Uint8Array, length?: number): T;
    fromJSON(object: any): T;
    toJSON(message: T): unknown;
    create<I extends Exact<DeepPartial<T>, I>>(base?: I): T;
    fromPartial<I extends Exact<DeepPartial<T>, I>>(object: I): T;
}
export {};