export default function createField<FieldValue = string>(): FieldSpec<FieldValue, FieldValue>;
export default function createField<FieldValue = string, FieldValueParsed = FieldValue>(parse: (value: FieldValue) => FieldValueParsed): FieldSpec<FieldValue, FieldValueParsed>;
export declare type CreateField = typeof createField;
export declare class FieldSpec<FieldValue, FieldValueParsed> {
    protected value: FieldValue;
    protected parsedValue: FieldValueParsed;
    parse: (value: FieldValue) => FieldValueParsed | undefined;
}