docs: def show_vmatrix(vm):
      '''
          d = {1: {2: {22: 222}}, 3: {'a': 'b'}}
          vm = [[[222]], ['b']]
          show_vmatrix(vm)
      '''
      unhandled = vm
      while(unhandled.__len__()>0):
          next_unhandled = []
          for i in range(0,unhandled.__len__()):
              ele = unhandled[i]
              print(ele)
              cond = elel.is_leaf(ele)
              if(cond):
                  pass
              else:
                  children = ele[0]
                  next_unhandled.append(children)
          unhandled = next_unhandled