type(obj) = <class 'sage.combinat.root_system.weyl_characters.WeylCharacterRing_with_category.element_class'>
version = 4.7.alpha2
obj =
'A2(0,0,0) + 2*A2(1,0,0) + A2(2,2,3) + 3*A2(0,1,0)'
