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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 define(self, names, **kwargs):
 """Define variables within the namespace. This is similar to :meth:`.Problem.define` except that names must be given as an iterable. This method accepts the same keyword arguments as :meth:`.Problem.define`. """

        define_kwargs = dict(self._define_kwargs)
        define_kwargs.update(kwargs)
        self._problem.define(
            *((self, name) for name in names), **define_kwargs)