code: def test_rm(monkeypatch):
      """This test validates rm behaves as expected."""
      if os.path.exists(cd._CD_FILE):
          os.remove(cd._CD_FILE)
  
      client = MagicMock()
      client.projects_service_list_memberships.return_value = (
          V1ListMembershipsResponse(
              memberships=[
                  V1Membership(
                      name="project-0", project_id="project-id-0"
                  ),
                  V1Membership(
                      name="project-1", project_id="project-id-1"
                  ),
                  V1Membership(
                      name="project 2", project_id="project-id-2"
                  ),
              ]
          )
      )
  
      client.lightningapp_instance_service_list_lightningapp_instances().get.return_value = V1ListLightningappInstancesResponse(
          lightningapps=[
              Externalv1LightningappInstance(
                  name="app-name-0", id="app-id-0"
              ),
              Externalv1LightningappInstance(
                  name="app-name-1", id="app-id-1"
              ),
              Externalv1LightningappInstance(
                  name="app name 2", id="app-id-1"
              ),
          ]
      )
  
      client.cloud_space_service_list_cloud_spaces().get.return_value = V1ListCloudSpacesResponse(
          cloudspaces=[]
      )
  
      clusters = MagicMock()
      clusters.clusters = [MagicMock()]
      client.projects_service_list_project_cluster_bindings.return_value = (
          clusters
      )
  
      def fn(*args, prefix, **kwargs):
          splits = [split for split in prefix.split("/") if split != ""]
          if len(splits) == 2:
              return V1ListLightningappInstanceArtifactsResponse(
                  artifacts=[
                      V1LightningappInstanceArtifact(
                          filename="file_1.txt"
                      ),
                      V1LightningappInstanceArtifact(
                          filename="folder_1/file_2.txt"
                      ),
                      V1LightningappInstanceArtifact(
                          filename="folder_2/folder_3/file_3.txt"
                      ),
                      V1LightningappInstanceArtifact(
                          filename="folder_2/file_4.txt"
                      ),
                  ]
              )
          if splits[-1] == "folder_1":
              return V1ListLightningappInstanceArtifactsResponse(
                  artifacts=[
                      V1LightningappInstanceArtifact(
                          filename="file_2.txt"
                      )
                  ]
              )
          if splits[-1] == "folder_2":
              return V1ListLightningappInstanceArtifactsResponse(
                  artifacts=[
                      V1LightningappInstanceArtifact(
                          filename="folder_3/file_3.txt"
                      ),
                      V1LightningappInstanceArtifact(
                          filename="file_4.txt"
                      ),
                  ]
              )
          if splits[-1] == "folder_3":
              return V1ListLightningappInstanceArtifactsResponse(
                  artifacts=[
                      V1LightningappInstanceArtifact(
                          filename="file_3.txt"
                      ),
                  ]
              )
          return None
  
      client.lightningapp_instance_service_list_project_artifacts = fn
  
      client.lightningapp_instance_service_delete_project_artifact = (
          MagicMock()
      )
  
      monkeypatch.setattr(
          rm, "LightningClient", MagicMock(return_value=client)
      )
      monkeypatch.setattr(
          ls, "LightningClient", MagicMock(return_value=client)
      )
  
      assert ls.ls() == ["project-0", "project-1", "project 2"]
      assert cd.cd("project-0", verify=False) == "/project-0"
  
      assert f"/project-0{os.sep}app-name-1" == cd.cd(
          "app-name-1", verify=False
      )
  
      assert f"/project-0{os.sep}app-name-1{os.sep}folder_1" == cd.cd(
          "folder_1", verify=False
      )
  
      rm.rm("file_2.txt")
  
      kwargs = (
          client.lightningapp_instance_service_delete_project_artifact._mock_call_args.kwargs
      )
      assert kwargs["project_id"] == "project-id-0"
      assert (
          kwargs["filename"]
          == "/lightningapps/app-id-1/folder_1/file_2.txt"
      )
  
      os.remove(cd._CD_FILE)
  
imports: import os
  import sys
  from unittest.mock import MagicMock
  import pytest
  from lightning.app.cli.commands import cd, ls, rm
  from lightning_cloud.openapi import Externalv1LightningappInstance, V1LightningappInstanceArtifact, V1ListCloudSpacesResponse, V1ListLightningappInstanceArtifactsResponse, V1ListLightningappInstancesResponse, V1ListMembershipsResponse, V1Membership
label_desc: Use image node_id 1 for calling a global function with example usage: test_rm(monkeypatch) and returns: None, V1ListLightningappInstanceArtifactsResponse, V1ListLightningappInstanceArtifactsResponse, V1ListLightningappInstanceArtifactsResponse, V1ListLightningappInstanceArtifactsResponse