parameters: (self)
docstring: This method should return the unmodified root for the file or 'None'
              on failure.
docstring_summary: This method should return the unmodified root for the file or 'None'
              on failure.
docstring_tokens: This method should return the unmodified root for the file or None on failure .
function: def GetRoot(self):
          """ This method should return the unmodified root for the file or 'None'
              on failure. """
          raise NotImplementedError
function_tokens: def GetRoot ( self ) : raise NotImplementedError