import type { BinaryWriteOptions } from "@protobuf-ts/runtime";
import type { IBinaryWriter } from "@protobuf-ts/runtime";
import type { BinaryReadOptions } from "@protobuf-ts/runtime";
import type { IBinaryReader } from "@protobuf-ts/runtime";
import type { PartialMessage } from "@protobuf-ts/runtime";
import { MessageType } from "@protobuf-ts/runtime";
/**
 * Container for enum describing possible criterion system serving statuses.
 *
 * @generated from protobuf message google.ads.googleads.v11.enums.CriterionSystemServingStatusEnum
 */
export interface CriterionSystemServingStatusEnum {
}
/**
 * Enumerates criterion system serving statuses.
 *
 * @generated from protobuf enum google.ads.googleads.v11.enums.CriterionSystemServingStatusEnum.CriterionSystemServingStatus
 */
export declare enum CriterionSystemServingStatusEnum_CriterionSystemServingStatus {
    /**
     * Not specified.
     *
     * @generated from protobuf enum value: UNSPECIFIED = 0;
     */
    UNSPECIFIED = 0,
    /**
     * The value is unknown in this version.
     *
     * @generated from protobuf enum value: UNKNOWN = 1;
     */
    UNKNOWN = 1,
    /**
     * Eligible.
     *
     * @generated from protobuf enum value: ELIGIBLE = 2;
     */
    ELIGIBLE = 2,
    /**
     * Low search volume.
     *
     * @generated from protobuf enum value: RARELY_SERVED = 3;
     */
    RARELY_SERVED = 3
}
declare class CriterionSystemServingStatusEnum$Type extends MessageType<CriterionSystemServingStatusEnum> {
    constructor();
    create(value?: PartialMessage<CriterionSystemServingStatusEnum>): CriterionSystemServingStatusEnum;
    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: CriterionSystemServingStatusEnum): CriterionSystemServingStatusEnum;
    internalBinaryWrite(message: CriterionSystemServingStatusEnum, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter;
}
/**
 * @generated MessageType for protobuf message google.ads.googleads.v11.enums.CriterionSystemServingStatusEnum
 */
export declare const CriterionSystemServingStatusEnum: CriterionSystemServingStatusEnum$Type;
export {};