human
Solve the following python programming problem given the following code:
@ memoized 
def value(self, **kwargs) : 
    startdate = kwargs [self.startdate_param_name] 
    enddate = kwargs [self.enddate_param_name] 
    date_range_inclusive = kwargs.get ('date_range_inclusive', True) 
    def date_or_nothing(param) : 
        if param : 
            return datetime.combine (iso_string_to_date (param), time ()) 
else : 
            return None 
try : 
        startdate = date_or_nothing (startdate) 
        enddate = date_or_nothing (enddate) 
except (ValueError, TypeError) as e : 
        raise FilterValueException ('Error parsing date parameters: {}'.format (enddate.message)) 
if (startdate or enddate) : 
        return DateSpan (startdate, enddate, inclusive = date_range_inclusive) 

    
    

    Fix the buggy line: raise FilterValueException ('Error parsing date parameters: {}'.format (enddate.message))
assistant
#Here is Python code to fix the buggy line: raise FilterValueException ('Error parsing date parameters: {}'.

raise FilterValueException ('Error parsing date parameters: {}'.format (e.message))