human
Solve the following python programming problem given the following code:
def _to_data(self) : 
    def getval(fld) : 
        val = getattr (self, fld.name, _NO_VAL) 
        if (val is _NO_VAL) : 
            val = fld.get_default_val () 
return val 
now = now_field () 
    setattr (self, '_last_update', now) 
    if (not getattr (self, '_create_date', '')) : 
        setattr (self, '_create_date', now) 
data = dict ([(fld.name, getval (getval)) for fld in self.__fields__]) 
    return json.dumps (data) 

    
    

    Fix the buggy line: data = dict ([(fld.name, getval (getval)) for fld in self.__fields__])
assistant
#Here is Python program to fix the buggy line: data = dict ([(fld.

data = dict ([(fld.name, getval (fld)) for fld in self.__fields__])