export declare function formHasChanged<T>(oldForm: T, newForm: T): boolean;
export declare function isPhoneNumber(phoneNumber: string): boolean;
export declare function isOnlyLettersAndSpaces(input: string): boolean;
export declare const preventNonNumberInput: React.KeyboardEventHandler<HTMLInputElement>;
export declare const preventNumberInput: React.KeyboardEventHandler<HTMLInputElement>;
export declare const preventNonNumberAndDecimalInput: React.KeyboardEventHandler<HTMLInputElement>;
export declare const isEmail: (str: string) => boolean;
export declare function isSlug(input: string): boolean;
