human
Solve the following python programming problem given the following code:
def _getModelDerivProperty(self) : 
    prop = self 
    def fget(self) : 
        mapping = getattr (self, ('%sMap' % prop.name)) 
        if ((mapping is None) and (prop.propertyLink is None)) : 
            return None 
if ((mapping is None) and (prop.propertyLink is not None)) : 
            (linkName, linkMapClass) = prop.propertyLink 
            linkedMap = getattr (self, ('%sMap' % linkName)) 
            if (linkedMap is None) : 
                return None 
linkMap = (linkMapClass (None) * linkedMap) 
            m = getattr (self, ('%s' % linkName)) 
            return linkMap.deriv (m) 
m = getattr (self, ('%sModel' % prop.name)) 
        return mapping.deriv (m) 
return property (fget = prop) 

    
    

    Fix the buggy line: return property (fget = prop)
assistant
#Here is Python code to fix the buggy line: return property (fget = prop)
.

return property (fget = fget)