/**
 * Clean error that improves the DX when making typo's in the `name` or `ngModelGroup` attributes
 */
export declare class ShapeMismatchError extends Error {
    constructor(errorList: string[]);
}
/**
 * Validates a form value against a shape
 * When there is something in the form value that is not in the shape, throw an error
 * This is how we throw runtime errors in develop when the developer has made a typo in the `name` or `ngModelGroup`
 * attributes.
 * @param formVal
 * @param shape
 */
export declare function validateShape(formVal: Record<string, any>, shape: Record<string, any>): void;