import { BaseTypeOptions, OptionsInput, TypeInterface } from '../types/type-definitions.js';
export type StringTypeOptions<E extends ReadonlyArray<string> = ReadonlyArray<string>> = BaseTypeOptions & {
    enum?: readonly [...E];
};
export type StringType<Options extends StringTypeOptions = StringTypeOptions> = TypeInterface<'string', Options>;
export declare function StringType<Options extends {}>(): StringType<Options>;
export declare function StringType<Options extends OptionsInput<StringTypeOptions>>(options: Options & (Options['enum'] extends ReadonlyArray<string> ? {
    enum: readonly [...Options['enum']];
} : {})): StringType<Options>;