func_code: def maximum(list_1):
      i = 0
      total = 0
      while i < len(list_1):
          if int(list_1[i]) >= int(total):
              total = list_1[i]
          else:
              0
          i = i + 1
      return total
annotation: def maximum(list_1):
      i = 0
      total = list_1[0]
      while i < len(list_1):
          if int(list_1[i]) >= int(total):
              total = list_1[i]
          else:
              0
          i = i + 1
      return total
  