The job is being cancelled. From this state the job may only go to
either JOB_STATE_SUCCEEDED, JOB_STATE_FAILED or JOB_STATE_CANCELLED.
Expired
The job has expired.
Failed
The job failed.
Paused
The job has been stopped, and can be resumed.
Pending
The service is preparing to run the job.
Queued
The job has been just created or resumed and processing has not yet begun.
Running
The job is in progress.
Succeeded
The job completed successfully.
Unspecified
The job state is unspecified.
Updating
The job is being updated. The job is only able to be updated at RUNNING
state; if the update operation succeeds, job goes back to RUNNING state; if
the update operation fails, the job goes back to RUNNING state with error
messages written to [ModelDeploymentMonitoringJob.partial_errors][] field
if it is a ModelDeploymentMonitoringJob.