import { Field } from './record';
export declare const DEFAULT_FIELD_DELIMITER = ",";
export declare const VALID_FIELD_DELIMITERS: string[];
export declare abstract class FieldStringifier {
    readonly fieldDelimiter: string;
    readonly quoteEmptyFields: boolean;
    readonly filterFunction: (value: Field) => Field;
    constructor(fieldDelimiter: string, quoteEmptyFields?: boolean, filterFunction?: (value: Field) => Field);
    abstract stringify(value?: Field): string;
    protected isEmpty(value?: Field): boolean;
    protected quoteField(field: string): string;
    protected filterValue(value: Field): Field;
}
declare class DefaultFieldStringifier extends FieldStringifier {
    stringify(value?: Field): string;
    private needsQuote;
}
declare class ForceQuoteFieldStringifier extends FieldStringifier {
    stringify(value?: Field): string;
}
export declare function createFieldStringifier(fieldDelimiter?: string, alwaysQuote?: boolean, quoteEmptyFields?: boolean, filterFunction?: (value: Field) => Field): DefaultFieldStringifier | ForceQuoteFieldStringifier;
export {};