docs: function createCopy(inPath, outPath) {
      if (!inPath) {
          throw new Error('Input path(s) argument is required');
      }
  
      if (!outPath) {
          throw new Error('Output path argument is required');
      }
  
      return function copyFiles() {
          return gulp.src(inPath).pipe(gulp.dest(outPath));
      };
  }