docs: def process_status(ctx, param, value):
      """Return status value."""
      from .models import PIDStatus
  
      # Allow empty status
      if value is None:
          return None
  
      if not hasattr(PIDStatus, value):
          raise click.BadParameter('Status needs to be one of {0}.'.format(
              ', '.join([s.name for s in PIDStatus])
          ))
      return getattr(PIDStatus, value)