Returns dictionary values or default.

    Args:
      key: string. Dictionary key to look up.
      default: string. Return this value if key not found.
      stringify: bool. Force all return values to string for compatibility
                 reasons.
    Returns:
      python-wrapped CF object or default if not found.

def get(self, key, default='', stringify=True):
    """Returns dictionary values or default.

    Args:
      key: string. Dictionary key to look up.
      default: string. Return this value if key not found.
      stringify: bool. Force all return values to string for compatibility
                 reasons.
    Returns:
      python-wrapped CF object or default if not found.
    """
    obj = self.__getitem__(key)
    if obj is None:
      obj = default
    elif stringify:
      obj = str(obj)
    return obj