code: def name_is_valid(name):
      
      # The name can only be 80 characters long.
      if len(name) > MAX_NAME_LENGTH:
          return False
      return bool(NAME_VALID_CHARS_REGEX.match(name))
docs: Return True if the dataset name is valid.
  
      The name can only be 80 characters long.
      Valid characters: Alpha numeric characters [0-9a-zA-Z]
      Valid special characters: - _ .