code: def normalizeFileFormatVersion(value):
      
      if not isinstance(value, int):
          raise TypeError("File format versions must be instances of "
                          ":ref:`type-int`, not %s."
                          % type(value).__name__)
      return value
docs: Normalizes a font's file format version.
  
      * **value** must be a :ref:`type-int`.
      * Returned value will be a ``int``.