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";
/**
 * Values for Callout placeholder fields.
 *
 * @generated from protobuf message google.ads.googleads.v11.enums.CalloutPlaceholderFieldEnum
 */
export interface CalloutPlaceholderFieldEnum {
}
/**
 * Possible values for Callout placeholder fields.
 *
 * @generated from protobuf enum google.ads.googleads.v11.enums.CalloutPlaceholderFieldEnum.CalloutPlaceholderField
 */
export declare enum CalloutPlaceholderFieldEnum_CalloutPlaceholderField {
    /**
     * Not specified.
     *
     * @generated from protobuf enum value: UNSPECIFIED = 0;
     */
    UNSPECIFIED = 0,
    /**
     * Used for return value only. Represents value unknown in this version.
     *
     * @generated from protobuf enum value: UNKNOWN = 1;
     */
    UNKNOWN = 1,
    /**
     * Data Type: STRING. Callout text.
     *
     * @generated from protobuf enum value: CALLOUT_TEXT = 2;
     */
    CALLOUT_TEXT = 2
}
declare class CalloutPlaceholderFieldEnum$Type extends MessageType<CalloutPlaceholderFieldEnum> {
    constructor();
    create(value?: PartialMessage<CalloutPlaceholderFieldEnum>): CalloutPlaceholderFieldEnum;
    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: CalloutPlaceholderFieldEnum): CalloutPlaceholderFieldEnum;
    internalBinaryWrite(message: CalloutPlaceholderFieldEnum, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter;
}
/**
 * @generated MessageType for protobuf message google.ads.googleads.v11.enums.CalloutPlaceholderFieldEnum
 */
export declare const CalloutPlaceholderFieldEnum: CalloutPlaceholderFieldEnum$Type;
export {};