code: def method(self, x):
      return x + 2
  
imports: import sys
  import time
  import pytest
  import ray
  import ray._private.gcs_utils
  import ray.cluster_utils
  from ray._private.test_utils import convert_actor_state, generate_system_config_map, get_error_message, get_other_nodes, kill_actor_and_wait_for_failure, placement_group_assert_no_leak, run_string_as_driver, wait_for_condition
  from ray.util.client.ray_client_helpers import connect_to_client_or_not
  from ray.util.placement_group import get_current_placement_group
  from ray.util.scheduling_strategies import PlacementGroupSchedulingStrategy
label_desc: Use image node_id 1 for calling the Increase obj's underlying member method code with example usage: obj.method(x) and returns: unknown