text: /**
   * @module calc
   */
  
  /**
   * Class representing a calculator.
   */
  class Calculator {
  
      /**
       * adds a and b.
       * @param {number} a - the number a.
       * @param {number} b - the number b.
       * @returns {number} a + b.
       */
      add(a, b) {
          return a + b;
      }
  }
  
  export default Calculator;
  