i1 : L=lieAlgebra({x,y},{},genSigns=>{0,1},genWeights=>{{2,0},{2,1}}, genDiffs=>{[],[x]},field=>ZZ/7) o1 = L o1 : LieAlgebra
i2 : boundariesBasisLie(10,2) o2 = {{{1, -1}, {[x, y, x, y, x], [y, x, x, y, x]}}} o2 : List