parameters: (self, features, mode, logits, labels)
docstring: See `Head`.
docstring_summary: See `Head`.
docstring_tokens: See Head .
function: def create_loss(self, features, mode, logits, labels):
      """See `Head`."""
      # TODO(roumposg): Implement it.
      raise NotImplementedError('create_loss not yet implemented for MultiHead.')
function_tokens: def create_loss ( self , features , mode , logits , labels ) : # TODO(roumposg): Implement it. raise NotImplementedError ( 'create_loss not yet implemented for MultiHead.' )