import { Field, Context, App } from "../../../main.js";
import { OpenApiTypes } from "../../../schemas/open-api-types.js";
type Props<S> = S[] | ((app: App) => S[]);
/** Allows only a specified set of values.
 *
 * **Params**:
 * - `allowed_values` - `Array<any>` - list of acceptable values
 */
export default class Enum<S> extends Field<string> {
    typeName: string;
    allowed_values: Props<S>;
    open_api_type: OpenApiTypes;
    getOpenApiSchema(context: Context): Promise<Record<string, unknown>>;
    constructor(allowed_values: Props<S>);
    getAllowedValues(app: App): S[];
    isProperValue(context: Context, value: S): Promise<import("../../../main.js").ValidationResult>;
    hasIndex(): Promise<boolean>;
    getPostgreSqlFieldDefinitions(): string[];
}
export {};