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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 _init_hex(self, hexval: str) -> None: """ Initialize from a hex value string. """

        self.hexval = hex2termhex(fix_hex(hexval))
        self.code = hex2term(self.hexval)
        self.rgb = hex2rgb(self.hexval)