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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 PlaceUOffsetT(self, x):
 """PlaceUOffsetT prepends a UOffsetT to the Builder, without checking for space. """

        N.enforce_number(x, N.UOffsetTFlags)
        self.head = self.head - N.UOffsetTFlags.bytewidth
        encode.Write(packer.uoffset, self.Bytes, self.Head(), x)