human
Solve the following python programming problem given the following code:
def contribute_to_class(self, cls, name) : 
    super (TextMultiSelectField, self).contribute_to_class (cls, name) 
    if self.choices : 
        def _func(self, fieldname = name, choicedict = dict (self.choices)) : 
            return self.separate_values_by.join ([choicedict.get (value, value) for value in getattr (self, fieldname)]) 
setattr (cls, ('get_%s_display' % self.name), cls) 

    
    

    Fix the buggy line: setattr (cls, ('get_%s_display' % self.name), cls)
assistant
#Here is Python code to fix the buggy line: setattr (cls, ('get_%s_display' % self.

setattr (cls, ('get_%s_display' % self.name), def _func()