human
Solve the following python programming problem given the following code:
def __init__(self, action_type, startFields, successFields, description = '') : 
    self.action_type = action_type 
    self.description = description 
    actionTypeField = Field.forValue (ACTION_TYPE_FIELD, self, 'The action type') 
    def makeActionStatusField(value) : 
        return Field.forValue (ACTION_STATUS_FIELD, value, 'The action status') 
startFields = (startFields + [actionTypeField, makeActionStatusField (STARTED_STATUS)]) 
    successFields = (successFields + [actionTypeField, makeActionStatusField (SUCCEEDED_STATUS)]) 
    failureFields = [actionTypeField, makeActionStatusField (FAILED_STATUS), REASON, EXCEPTION] 
    self._serializers = _ActionSerializers (start = _MessageSerializer (startFields), success = _MessageSerializer (successFields), failure = _MessageSerializer (failureFields, allow_additional_fields = True)) 

    
    

    Fix the buggy line: actionTypeField = Field.forValue (ACTION_TYPE_FIELD, self, 'The action type')
assistant
#Here is Python code to fix the buggy line: actionTypeField = Field.

actionTypeField = Field.forValue (ACTION_TYPE_FIELD, action_type, 'The action type')