/**
 * Convert a string to camelCase
 *
 * @param input - The string to convert
 * @param pascalCase - A boolean representing if the string should be converted to PascalCase
 * @returns The camelCase version of the string
 *
 * @example
 * toCamelCase('MY_TEXT')       // Returns: `myText`
 * toCamelCase('MY_TEXT', true) // Returns: `MyText`
 */
export declare function toCamelCase(input: string, pascalCase?: boolean): string | undefined;