code: def create_dir(path):
      
      full_path = abs_path(path)
      if not os.path.exists(full_path):
          try:
              os.makedirs(full_path)
          except OSError as e:
              # ignore the error for dir already exist.
              if e.errno != os.errno.EEXIST:
                  raise
docs: Creates a directory if it does not exist already.
  
      Args:
          path: The path of the directory to create.