How do I load an image using the nerdctl/v2/cmd/image library?

[sober-wang]

this my code :

package cricli

import (
        "context"
        "log"
        "os"

        containerd "github.com/containerd/containerd/v2/client"
        ndtyps "github.com/containerd/nerdctl/v2/pkg/api/types"
        ndimg "github.com/containerd/nerdctl/v2/pkg/cmd/image"
)

type CriCli struct {
        Cli *containerd.Client
        Err error
}

func NewCli(socketFile string) CriCli {
        client, err := containerd.New(socketFile)
        if err != nil {
                return CriCli{
                        Err: err,
                }
        }
        return CriCli{
                Cli: client,
        }
}

func (cli *CriCli) NerdLoadImage(imgFp string) error {
        globTypes := ndtyps.ImageLoadOptions{
                GOptions: ndtyps.GlobalCommandOptions{
                        Debug:         false,
                        Namespace:     "default",
                        Snapshotter:   "overlayfs",
                        CgroupManager: "systemd",
                },
                Stdout:       os.Stdout,
                Input:        imgFp,
                Platform:     []string{"amd64"},
                AllPlatforms: false,
        }

        if err := ndimg.Load(context.Background(), cli.Cli, globTypes); err != nil {
                log.Println("ERROR| ", err)
                return err
        }
        return nil
}

package cricli

import "testing"

func TestNerdLoadImage(t *testing.T) {
        cli := NewCli("/run/containerd/containerd.sock")

        if err := cli.NerdLoadImage("./calico_cni_v3.28.1.tar"); err != nil {
                t.Log(err)
        }
}

I'll run the test code. show

$  go test -v -run ^TestNerdLoadImage$ cri_cli.go cri_cli_test.go
=== RUN   TestNerdLoadImage
2024/09/01 20:40:50 ERROR|  no image was built
    cri_cli_test.go:9: no image was built
--- PASS: TestNerdLoadImage (0.01s)
PASS
ok      command-line-arguments  0.020s

I read cmd/image/Load and cmd/image/loadImage , but I don't understand r := &readCounter{Reader: in} and r.N == 0 .
How should my code be modified ?
this is a tool , I'll used contianerd load and push images to a registry. I want to do this with go code instead of calling the shell.