human
Solve the following python programming problem given the following code:
def _key(self) : 
    if self.address : 
        return self.address 
else : 
        def hashable(value) : 
            if isinstance (value, dict) : 
                return tuple (sorted (((k, hashable (v)) for (k, v) in value.items ()))) 
else : 
                if isinstance (value, list) : 
                    return tuple ((hashable (v) for v in value)) 
else : 
                    return value 
return tuple (sorted (((k, hashable (v)) for (k, v) in self._kwargs.items () if (k not in hashable._INHERITANCE_FIELDS)))) 

    
    

    Fix the buggy line: return tuple (sorted (((k, hashable (v)) for (k, v) in self._kwargs.items () if (k not in hashable._INHERITANCE_FIELDS))))
assistant
#Here is Python code to fix the buggy line: return tuple (sorted (((k, hashable (v)) for (k, v) in self.

return tuple (sorted (((k, hashable (v)) for (k, v) in self._kwargs.items () if (k not in self._INHERITANCE_FIELDS))))