human
Solve the following python programming problem given the following code:
def prioritizeComputation(self, computedValue, onPrioritizedCallback, onCompletedCallback, onFailedCallback) : 
    'Prioritize a given computation.

        computedValue - the callback result of creating a computation.
        onPrioritizedCallback - called with either an error or None on success of the prioritization
        onCompletedCallback - called with the "jsonStatus" if the computation finishes with a value
        onFailedCallback - called with a pyfora exception if the computation fails
            or throws an exception for some reason
        ' 
    def onFailure(err) : 
        if (not self.closed) : 
            onPrioritizedCallback (Exceptions.PyforaError (err)) 
def onSuccess(result) : 
        if (not self.closed) : 
            onPrioritizedCallback (None) 
            self._subscribeToComputationStatus (computedValue, onCompletedCallback, onFailedCallback) 
computedValue.increaseRequestCount ({ 
        
}, { 
        'onSuccess' : onCompletedCallback, 
        'onFailure' : onFailure, 
}) 

    
    

    Fix the buggy line: 'onSuccess' : onCompletedCallback ,
assistant
#Here is Python program to fix the buggy line: 'onSuccess' : onCompletedCallback ,
.

'onSuccess' : def onSuccess(,