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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 close(self):
 """ Closes the lvm and vg_t handle. Usually you would never need to use this method unless you are doing operations using the ctypes function wrappers in conversion.py *Raises:* * HandleError """

        if self.handle:
            cl = lvm_vg_close(self.handle)
            if cl != 0:
                raise HandleError("Failed to close VG handle after init check.")
            self.__vgh = None
            self.lvm.close()