input: Write a python function to restructure a Maildir directory according to specified required directories and optional files.
  assert os.path.isdir("test/logs")
  assert os.path.isdir("test/logs/fileMeta")
  assert os.path.isdir("test/metadata")
  assert os.path.isdir("test/metadata/submissionDocumentation")
  assert os.path.isdir("test/objects")
  assert os.path.isdir("test/objects/Maildir")
  assert not os.path.isdir("test/someOtherDir")
  assert os.path.isfile("test/objects/Maildir/someFile")
output: import os
  
  def restructure_maildir(base_path):
      required_dirs = [
          "logs", "logs/fileMeta", "metadata", "metadata/submissionDocumentation", "objects", "objects/Maildir"
      ]
  
      # Create required directories if they don't exist
      for dir in required_dirs:
          dir_path = os.path.join(base_path, dir)
          if not os.path.isdir(dir_path):
              os.makedirs(dir_path)
  
      # Create an optional file in the objects/Maildir directory
      optional_file_path = os.path.join(base_path, "objects/Maildir/someFile")
      if not os.path.isfile(optional_file_path):
          with open(optional_file_path, 'w') as file:
              file.write('')