#NEWLINE# def _add_reference( reference , statement ) : #NEWLINE# #INDENT# '\n    Adds a reference to statement.\n    ' #NEWLINE# ( type_ , value ) = _expand_one_key_dictionary ( reference ) #NEWLINE# opt = Option ( type_ ) #NEWLINE# param = SimpleParameter ( value ) #NEWLINE# opt . add_parameter ( param ) #NEWLINE# statement . add_child ( param )