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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 _makeini(self, w, v):
 """C initializer string for a wire with a given value."""

        pieces = []
        for n in range(self._limbs(w)):
            pieces.append(hex(v & ((1 << 64)-1)))
            v >>= 64
        return ','.join(pieces).join('{}')