docs: def update(self, container_id, from_file=None):
      '''update container cgroup resources for a specific container_id,
         The container must have state "running" or "created."
  
         Singularity Example:
             singularity oci update [update options...] <container_ID>
             singularity oci update --from-file cgroups-update.json mycontainer
  
         Parameters
         ==========
         container_id: the container_id to update cgroups for
         from_file: a path to an OCI JSON resource file to update from.
      '''
      sudo = self._get_sudo(sudo)
      container_id = self.get_container_id(container_id)
  
      # singularity oci delete
      cmd = self._init_command('update')
  
      if from_file != None:
          cmd = cmd + ['--from-file', from_file]
  
      # Add the container_id
      cmd.append(container_id)
  
      # Delete the container, return code goes to user (message to screen)
      return self._run_and_return(cmd, sudo)