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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 first_value_of(self, name, default_value = None):
 """ Return the first value of a particular param by name if it exists otherwise false. """

        vals = self.values_of(name)
        if vals is not None:
            return vals if type(vals) is not list else vals[0]
        return default_value