class_docstr: Utility to test BatchingNodeProvider.
docstr: Generates random sequences of create_node and terminate_nodes requests
  for the node provider. Generates random safe_to_scale_flag.
docstr_tok: ["Generates","random","sequences","of","create_node","and","terminate_nodes","requests","for","the","node","provider",".","Generates","random","safe_to_scale_flag","."]
code: def generate_random_requests(self):
      """Generates random sequences of create_node and terminate_nodes requests
      for the node provider. Generates random safe_to_scale_flag.
      """
      num_creates = random.choice(range(100))
      num_terminates = random.choice(range(100))
  
      create_node_requests = []
      for _ in range(num_creates):
          # Choose from 5 worker types.
          node_type = random.choice([f"type-{x}" for x in range(5)])
          # Create up to 9 workers.
          count = random.choice(range(10))
          create_node_requests.append((node_type, count))
  
      terminate_nodes_requests = []
      for _ in range(num_terminates):
          node_type = random.choice([f"type-{x}" for x in range(5)])
          # Terminate up to 9 workers.
          count = random.choice(range(10))
          terminate_nodes_requests.append((node_type, count))
  
      # 50% chance of the update being executed.
      safe_to_scale_flag = random.choice([True, False])
  
      return (
          create_node_requests,
          terminate_nodes_requests,
          safe_to_scale_flag,
      )
  
imports: from copy import copy
  from uuid import uuid4
  import os
  import random
  import sys
  from typing import Any, Dict
  from collections import defaultdict
  import pytest
  from ray.autoscaler.batching_node_provider import BatchingNodeProvider, NodeData, ScaleRequest
  from ray.autoscaler._private.util import NodeID, NodeType
  from ray.autoscaler.tags import STATUS_UP_TO_DATE, TAG_RAY_USER_NODE_TYPE, TAG_RAY_NODE_KIND, TAG_RAY_NODE_STATUS, NODE_KIND_HEAD, NODE_KIND_WORKER
  from ray.autoscaler._private.constants import DISABLE_LAUNCH_CONFIG_CHECK_KEY, DISABLE_NODE_UPDATERS_KEY, FOREGROUND_NODE_LAUNCH_KEY
label_desc: Use image node_id 5 for calling the BatchingNodeProviderTester obj's underlying member method code with example usage: obj.generate_random_requests() and returns: create_node_requests,  terminate_nodes_requests,  safe_to_scale_flag