old_contents: 'use strict';
  
  var gulp = require('gulp');
  var sass = require('gulp-sass');
  
  sass.compiler = require('node-sass');
  
  gulp.task('sass', function () {
    return gulp.src('./sass/**/*.scss')
      .pipe(sass({ outputStyle: 'expanded' }).on('error', sass.logError))
      // .pipe(sass({ outputStyle: 'compressed' }).on('error', sass.logError))
      .pipe(gulp.dest('./public/css'));
  });
  
  gulp.task('sass:watch', function () {
    gulp.watch('./sass/**/*.scss', gulp.series('sass'));
  });
new_contents: 'use strict';
  
  var gulp = require('gulp');
  var sass = require('gulp-sass');
  
  sass.compiler = require('node-sass');
  
  gulp.task('sass', function () {
    return gulp.src('./sass/**/*.scss')
      .pipe(sass({ outputStyle: 'expanded' }).on('error', sass.logError))
      // .pipe(sass({ outputStyle: 'compressed' }).on('error', sass.logError))
      .pipe(gulp.dest('./public/css'));
  });
  
  gulp.task('sass:watch', function () {
    gulp.watch('./sass/**/*.scss', gulp.series('sass'));
  }); 
subject: test hook 2