/**
 * Helper to produce a string with a variable number of arguments. Insert variable segments
 * into the string using the {n} notation where N is the index of the argument following the string.
 *
 * @param value string to which formatting is applied
 * @param args replacements for {n}-entries
 *
 * @example
 *
 *      format('Foo {0} Bar {1}{2}', 'yes');             //=> 'Foo yes Bar {1}{2}'
 *      format('Foo {0} Bar {1}{2}', 'yes', undefined);  //=> 'Foo yes Bar undefined{2}'
 *      format('Foo {0} Bar {1}{2}', 'yes', 5, false);   //=> 'Foo yes Bar 5false'
 *
 */
export declare function format(value: string, ...args: any[]): string;