使用docker buildkit的go客户端，如何添加入口点？

import (
    "context"
    "github.com/docker/docker/api/types"
    "github.com/docker/docker/client"
)

cli, err := client.NewClientWithOpts(client.FromEnv)
if err != nil {
    panic(err)
}

dockerfileContent := []byte(`
    FROM <base_image>
    ...
    ENTRYPOINT ["<entrypoint_command>"]
    ...
`)

ctx := context.Background()
response, err := cli.ImageBuild(ctx, bytes.NewBuffer(dockerfileContent), types.ImageBuildOptions{
    Context:    ctx,
    Dockerfile: "Dockerfile",
    BuildArgs:  map[string]*string{},
    Platform:   "linux/amd64",
})
if err != nil {
    panic(err)
}
defer response.Body.Close()

_, err = io.Copy(os.Stdout, response.Body)
if err != nil {
    panic(err)
}