export declare const startsWith: import("ts-toolbelt/out/Function/Curry").Curry<(needle: string, haystack: string) => boolean>;
export declare const endsWith: import("ts-toolbelt/out/Function/Curry").Curry<(needle: string, haystack: string) => boolean>;
/**
 * Trims characters from the left side of a string.
 */
export declare const ltrim: import("ts-toolbelt/out/Function/Curry").Curry<(cutset: string, str: string) => string>;