/**
 * Convert string to camel case
 */
export declare function camelCase(val: string): string;
/**
 * Convert string to snake case
 */
export declare function snakeCase(val: string): string;
/**
 * Convert string to kebab case
 */
export declare function kebabCase(val: string): string;
/**
 * Convert string to start case
 */
export declare function startCase(val: string): string;
/**
 * Capitalizes first letter and lower cases the rest
 */
export declare function capitalize(val: string): string;
/**
 * Lower cases first letter (handles unicode)
 */
export declare function lowerFirst(val: string): string;
/**
 * Capitalizes first letter (handles unicode)
 */
export declare function upperFirst(val: string): string;
/**
 * Splits pascal/camel/snake case words and lower cases them.
 */
export declare function lowerCase(val: string): string;
/**
 * Splits pascal/camel/snake case words and upper cases them.
 */
export declare function upperCase(val: string): string;