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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 copy(self):
 """Returns a copy of this ClasspathProducts. Edits to the copy's classpaths or exclude associations will not affect the classpaths or excludes in the original. The copy is shallow though, so edits to the copy's product values will mutate the original's product values. See `UnionProducts.copy`. :API: public :rtype: :class:`ClasspathProducts` """

    return ClasspathProducts(pants_workdir=self._pants_workdir,
                             classpaths=self._classpaths.copy(),
                             excludes=self._excludes.copy())