code: def _work_to_spec(work: LightningWork) -> V1LightningworkSpec:
      work_requirements = "\n".join(
          work.cloud_build_config.requirements
      )
  
      build_spec = V1BuildSpec(
          commands=work.cloud_build_config.build_commands(),
          python_dependencies=V1PythonDependencyInfo(
              package_manager=V1PackageManager.PIP,
              packages=work_requirements,
          ),
          image=work.cloud_build_config.image,
      )
  
      drive_specs: List[V1LightningworkDrives] = []
      for drive_attr_name, drive in [
          (k, getattr(work, k))
          for k in work._state
          if isinstance(getattr(work, k), Drive)
      ]:
          if drive.protocol == "lit://":
              drive_type = V1DriveType.NO_MOUNT_S3
              source_type = V1SourceType.S3
          else:
              drive_type = V1DriveType.UNSPECIFIED
              source_type = V1SourceType.UNSPECIFIED
  
          drive_specs.append(
              V1LightningworkDrives(
                  drive=V1Drive(
                      metadata=V1Metadata(
                          name=f"{work.name}.{drive_attr_name}"
                      ),
                      spec=V1DriveSpec(
                          drive_type=drive_type,
                          source_type=source_type,
                          source=f"{drive.protocol}{drive.id}",
                      ),
                      status=V1DriveStatus(),
                  ),
                  mount_location=str(drive.root_folder),
              ),
          )
  
      # this should really be part of the work.cloud_compute struct, but to save
      # time we are not going to modify the backend in this set of PRs & instead
      # use the same s3 drives API which we used before.
      if work.cloud_compute.mounts is not None:
          if isinstance(work.cloud_compute.mounts, Mount):
              drive_specs.append(
                  _create_mount_drive_spec(
                      work_name=work.name,
                      mount=work.cloud_compute.mounts,
                  )
              )
          else:
              for mount in work.cloud_compute.mounts:
                  drive_specs.append(
                      _create_mount_drive_spec(
                          work_name=work.name,
                          mount=mount,
                      )
                  )
  
      if hasattr(work.cloud_compute, "interruptible"):
          preemptible = work.cloud_compute.interruptible
      else:
          preemptible = work.cloud_compute.preemptible
  
      colocation_group_id = None
      if hasattr(work.cloud_compute, "colocation_group_id"):
          colocation_group_id = work.cloud_compute.colocation_group_id
  
      user_compute_config = V1UserRequestedComputeConfig(
          name=work.cloud_compute.name,
          count=1,
          disk_size=work.cloud_compute.disk_size,
          preemptible=preemptible,
          shm_size=work.cloud_compute.shm_size,
          affinity_identifier=colocation_group_id,
      )
  
      random_name = "".join(
          random.choice(string.ascii_lowercase) for _ in range(5)
      )  # noqa: S311
  
      return V1LightningworkSpec(
          build_spec=build_spec,
          drives=drive_specs,
          user_requested_compute_config=user_compute_config,
          network_config=[
              V1NetworkConfig(name=random_name, port=work.port)
          ],
          desired_state=V1LightningworkState.RUNNING,
          restart_policy=V1LightningappRestartPolicy.NEVER,
          cluster_driver=V1LightningworkClusterDriver.DIRECT,
      )
  
imports: import inspect
  import json
  import logging
  import os
  import random
  import string
  import urllib
  from time import monotonic, sleep, time
  from typing import List, Optional
  from lightning_cloud.openapi import AppinstancesIdBody, Externalv1LightningappInstance, Externalv1Lightningwork, V1BuildSpec, V1Drive, V1DriveSpec, V1DriveStatus, V1DriveType, V1Flowserver, V1LightningappInstanceState, V1LightningappRestartPolicy, V1LightningworkClusterDriver, V1LightningworkDrives, V1LightningworkSpec, V1LightningworkState, V1ListLightningworkResponse, V1Metadata, V1NetworkConfig, V1PackageManager, V1PythonDependencyInfo, V1SourceType, V1UserRequestedComputeConfig
  from lightning_cloud.openapi.rest import ApiException
  from lightning.app.core import LightningApp, LightningWork
  from lightning.app.core.queues import QueuingSystem
  from lightning.app.runners.backends.backend import Backend
  from lightning.app.storage import Drive, Mount
  from lightning.app.utilities.enum import WorkStageStatus, WorkStopReasons, make_status
  from lightning.app.utilities.exceptions import LightningPlatformException
  from lightning.app.utilities.network import LightningClient, _check_service_url_is_ready
  from lightning_cloud.openapi import SpecLightningappInstanceIdWorksBody, WorksIdBody
label_desc: Use image node_id 2 for calling the CloudBackend obj's underlying member method code with example usage: obj._work_to_spec(work) and returns: V1LightningworkSpec