  \begin{Mexin}
polylib::support(poly(x*y*z + x + 1, [x, y, z]))
  \end{Mexin}
  \begin{Mexout}
               [[1, 1, 1], [1, 0, 0], [0, 0, 0]]
  \end{Mexout}

  \begin{Mexin}
polylib::support(Dom::UnivariatePolynomial(x)(x^3*y*z + x + 1))
  \end{Mexin}
  \begin{Mexout}
                           [3, 1, 0]
  \end{Mexout}
