code: def read_only(self):
      import sys
      import random
  
      rand = random.random()
      if rand < 0.2:
          return 2 / 0
      elif rand < 0.3:
          sys.exit(1)
  
      return 2
  
imports: import ray
label_desc: Use image node_id 1 for calling the Actor obj's underlying member method code with example usage: obj.read_only() and returns: int, unknown