text: module.exports = function getSeason( date ) {
      if (!date) { return 'Unable to determine the time of year!';}
      if (Object.keys(date).length > 0) { throw new Error();}
      let fourSeasons = {
          winter: [11, 0, 1],
          spring: [2, 3, 4],
          summer: [5, 6, 7],
          autumn: [8, 9, 10]
      };
      let month = date.getMonth();
  
      for (let season in fourSeasons) {
          if (fourSeasons[season].includes(month)) {
              return season;
          }
      }
  };
  