code: def upload(ctx, release, rebuild):
      
      dist_path = Path(DIST_PATH)
      if rebuild is False:
          if not dist_path.exists() or not list(dist_path.glob('*')):
              print("No distribution files found. Please run 'build' command first")
              return
      else:
          ctx.invoke(build, force=True)
  
      if release:
          args = ['twine', 'upload', 'dist/*']
      else:
          repository = 'https://test.pypi.org/legacy/'
          args = ['twine', 'upload', '--repository-url', repository, 'dist/*']
  
      env = os.environ.copy()
  
      p = subprocess.Popen(args, env=env)
      p.wait()
docs: Uploads distribuition files to pypi or pypitest.