code: func (cli *Client) CheckpointCreate(ctx context.Context, container string, options types.CheckpointCreateOptions) error {
  	resp, err := cli.post(ctx, "/containers/"+container+"/checkpoints", nil, options, nil)
  	ensureReaderClosed(resp)
  	return err
  }
docs: // CheckpointCreate creates a checkpoint from the given container with the given name