const (
	letterIdxBits = 6                    // 6 bits to represent a letter index
	letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
)

// Random number state.
// We generate random temporary file names so that there's a good
// chance the file doesn't exist yet.
var (
	randN  uint32
	randmu sync.Mutex
)

		// fileheader and TOC's crc32 match if they're both
		// non-zero and only the second line above, the TOC,
		// is what matters.
	})
}

// rZipBytes returns the bytes of a recursive zip file, without
// putting it on disk and triggering certain virus scanners.
func rZipBytes() []byte {
	s := `
0000000 50 4b 03 04 14 00 00 00 08 00 08 03 64 3c f9 f4
0000010 89 64 48 01 00 00 b8 01 00 00 07 00 00 00 72 2f

    subclasses. We've restored that support!


## Version 3.13.0

_2019-02-04_

 *  **This release bumps our minimum requirements to Java 8+ or Android 5+.** Cutting off old
    devices is a serious change and we don't do it lightly! [This post][require_android_5] explains
    why we're doing this and how to upgrade.

### Service Catalog
- **[alpha]** Adds a new API resource `PodPreset` and admission controller to enable defining cross-cutting injection of Volumes and Environment into Pods.

### Volumes
* **[stable]** StorageClass API is promoted to v1 (storage.k8s.io/v1).

- Kube-scheduler: emits a warning when a malformed component config file is used with v1alpha1. ([#84129](https://github.com/kubernetes/kubernetes/pull/84129), [@obitech](https://github.com/obitech))
- Kube-scheduler now falls back to emitting events using core/v1 Events when events.k8s.io/v1beta1 is disabled. ([#83692](https://github.com/kubernetes/kubernetes/pull/83692), [@yastij](https://github.com/yastij))

* kubectl: fixes issue with `-o yaml` and `-o json` omitting kind and apiVersion when used with `--dry-run` ([#61808](https://github.com/kubernetes/kubernetes/pull/61808), [@liggitt](https://github.com/liggitt))

* kubectl: fixes issue with `-o yaml` and `-o json` omitting kind and apiVersion when used with `--dry-run` ([#61808](https://github.com/kubernetes/kubernetes/pull/61808), [@liggitt](https://github.com/liggitt))

  * Implement API usage metrics for GCE storage. ([#40338](https://github.com/kubernetes/kubernetes/pull/40338), [@gnufied](https://github.com/gnufied))

  * Add support for emitting metrics from openstack cloudprovider about storage operations. ([#46008](https://github.com/kubernetes/kubernetes/pull/46008), [@NickrenREN](https://github.com/NickrenREN))

Tamas Bela Feher, Tao Xu, Thibaut Goetghebuer-Planchon, Thomas Schmeyer,
tilakrayal, Valery Mironov, Victor Guo, Vignesh Kothapalli, Vishnuvardhan
Janapati, wamuir, Wang,Quintin, William Muir, William Raveane, Yash Goel, Yimei
Sun, Yong Tang, Yuduo Wu

# Release 2.7.1

This releases introduces several vulnerability fixes:

- After DBus restarts, make `GracefulNodeShutdown` work again ([#100369](https://github.com/kubernetes/kubernetes/pull/100369), [@wzshiming](https://github.com/wzshiming))
- Aggregate errors when putting vmss. ([#98350](https://github.com/kubernetes/kubernetes/pull/98350), [@nilo19](https://github.com/nilo19))