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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 _setue(self, i):
 """Initialise bitstring with unsigned exponential-Golomb code for integer i. Raises CreationError if i < 0. """

        if i < 0:
            raise CreationError("Cannot use negative initialiser for unsigned "
                                "exponential-Golomb.")
        if not i:
            self._setbin_unsafe('1')
            return
        tmp = i + 1
        leadingzeros = -1
        while tmp > 0:
            tmp >>= 1
            leadingzeros += 1
        remainingpart = i + 1 - (1 << leadingzeros)
        binstring = '0' * leadingzeros + '1' + Bits(uint=remainingpart,
                                                             length=leadingzeros).bin
        self._setbin_unsafe(binstring)