#NEWLINE# def list_instances( self , all_tenants = False , **kwargs ) : #NEWLINE# #INDENT# 'Obtain a list of instances\n        Params: can be filtered by \'uuid\',\'name\',\'description\',\'scenario_id\', "tenant_id"\n        Return: Raises an exception on error\n                Obtain a dictionary with format {\'instances\':[{instance1_info},{instance2_info},...]}}\n        ' #NEWLINE# return self . _list_item ( 'instances' , all_tenants , kwargs )