type PodNetnsCache interface {
	ReadCurrentPodSnapshot() map[string]WorkloadInfo
}

// Hold a cache of node local pods with their netns
// if we don't know the netns, the pod will still be here with a nil netns.
type podNetnsCache struct {
	openNetns func(nspath string) (NetnsCloser, error)

	currentPodCache map[string]WorkloadInfo
	mu              sync.RWMutex
}

// path unmodified.
//
// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath
func fixLongPath(path string) string {
	// Do nothing (and don't allocate) if the path is "short".
	// Empirically (at least on the Windows Server 2013 builder),
	// the kernel is arbitrarily okay with < 248 bytes. That
	// matches what the docs above say:

  @SuppressWarnings("Immutable") // We don't modify this after construction.
  private final int[] cellRowIndices;

  // For each cell in iteration order, the index of that cell's column key in the list of column
  // keys present in that row.
  @SuppressWarnings("Immutable") // We don't modify this after construction.
  private final int[] cellColumnInRowIndices;

# OpenAPI

There are several utilities to handle OpenAPI.

          - pkg: github.com/golang/protobuf/jsonpb
            desc: "don't use the jsonpb package directly; use util/protomarshal instead"
          - pkg: google.golang.org/protobuf/encoding/protojson
            desc: "don't use the protojson package directly; use util/protomarshal instead"
          - pkg: gomodules.xyz/jsonpatch/v3
            desc: "don't use v3; v2 is orders of magnitude higher performance"

		return copiedFiles, fmt.Errorf("copy binaries: %v", err)
	}

	// Install kubeconfig (if needed) - we write/update this in the shared node CNI netdir,
	// which may be watched by other CNIs, and so we don't want to trigger writes to this file
	// unless it's missing or the contents are not what we expect.
	if err := maybeWriteKubeConfigFile(in.cfg); err != nil {

# Prevent double-compilation of some TF code, ref. b/183279666 (internal)
# > TF's gen_api_init_files has a genrule to run the core TensorFlow code
# > on the host machine. If we don't have --distinct_host_configuration=false,
# > the core TensorFlow code will be built once for the host and once for the
# > target platform.

	// is obviously garbage (Unix time == 0), then ignore modtimes
	// and don't process the If-Modified-Since header.
	if objInfo.ModTime.IsZero() || objInfo.ModTime.Equal(time.Unix(0, 0)) {
		return false
	}

	// Check if the part number is correct.
	if opts.PartNumber > 1 && opts.PartNumber > len(objInfo.Parts) {
		// According to S3 we don't need to set any object information here.

Let's say that you want to declare the query parameter `q` as a required `str`.

And you don't need to declare anything else for that parameter, so you don't really need to use `Query`.

But you still need to use `Path` for the `item_id` path parameter. And you don't want to use `Annotated` for some reason.

{!../../../docs_src/nosql_databases/tutorial001.py!}
```

We will use this model in our *path operation function*, so, we don't include in it the `hashed_password`.

### `UserInDB` model

Now, let's create a `UserInDB` model.

This will have the data that is actually stored in the database.