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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 valid_value(self, value):
 """ Check if the provided value is a valid choice. """

        if isinstance(value, Constant):
            value = value.name
        text_value = force_text(value)
        for option_value, option_label, option_title in self.choices:
            if value == option_value or text_value == force_text(option_value):
                return True
        return False