export type IValidatorResult = undefined | string;
export type IValidator = (value: any, label?: string) => IValidatorResult;
export interface IFormValidator {
    /**
     * Defines a new form field to validate
     *
     * @param name the name of the field in the Formik Form
     * @param label (optional) the label of this field.
     */
    field: (name: string, label: string) => IFormValidatorField;
    /**
     * Runs validation on all the ValidatableField(s) in this FormValidator.
     *
     * This function aggregate all the field validation errors into an object compatible with Formik Errors.
     * Each field error is stored in the resulting object using the field's 'name' as a path.
     */
    validateForm: () => any;
    arrayForEach: (iteratee: IArrayItemValidator) => IValidator;
}
export interface IFormValidatorField {
    /** Causes the field to fail validation if the value is undefined, null, or empty string. */
    required(message?: string): IFormValidatorField;
    /**
     * Causes the field to pass validation if the value is undefined, null, or empty string.
     * Fields are default by default.
     */
    optional(): IFormValidatorField;
    /** Causes the field to pass validation if the value contains SpEL */
    spelAware(isSpelAware?: boolean): IFormValidatorField;
    /** Adds additional validators */
    withValidators(...validators: IValidator[]): IFormValidatorField;
}
export type IArrayItemValidator = (itemBuilder: IArrayItemValidationBuilder, item: any, index: number, array: any[], arrayLabel: string) => void;
export interface IArrayItemValidationBuilder extends IFormValidator {
    item: (label: string) => IFormValidatorField;
}
export declare const FORM_VALIDATION_VALIDATABLE_FIELD_IS_VALID_SHORT_CIRCUIT = "__FIELD_IS_VALID_SHORT_CIRCUIT__";
export declare const composeValidators: (validators: IValidator[]) => IValidator;