func (c *Client) Export(ctx context.Context, w io.Writer, opts ...archive.ExportOpt) error {
	return archive.Export(ctx, c.ContentStore(), w, opts...)
}
Export exports images to a Tar stream.
The tar archive is in OCI format with a Docker compatible manifest
when a single target platform is given.
package containerd
import (
	"context"
	"io"
	"github.com/containerd/containerd/images/archive"
)