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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def open(self, pchPath, mode, unElementSize, unElements):
 """opens an existing or creates a new IOBuffer of unSize bytes"""


        fn = self.function_table.open
        pulBuffer = IOBufferHandle_t()
        result = fn(pchPath, mode, unElementSize, unElements, byref(pulBuffer))
        return result, pulBuffer