Additionally, we often need to convert to various different client forms for different libraries we integrate with.

`kube.Client` just bundles these all in one place, so we have a single object to pass around anywhere we need Kubernetes access.
Additionally, it has a fake client variant, that does the same thing but with fake clients for use in unit tests.

	usersSysType UsersSysType

	rolesMap map[arn.ARN]string

	// Persistence layer for IAM subsystem
	store *IAMStoreSys

	// configLoaded will be closed and remain so after first load.
	configLoaded chan struct{}
}

// IAMUserType represents a user type inside MinIO server
type IAMUserType int

const (
	unknownIAMUserType IAMUserType = iota - 1
	regUser
	stsUser

     * intermediate signing certificates beneath it.
     *
     * By default this certificate cannot not sign other certificates. Set this to 0 so this
     * certificate can sign other certificates (but those certificates cannot themselves sign
     * certificates). Set this to 1 so this certificate can sign intermediate certificates that can
     * themselves sign certificates. Add one for each additional layer of intermediates to permit.

          new NumberFormatException("Error parsing value: " + stringValue);
      decodeException.initCause(e);
      throw decodeException;
    }
  }

  /*
   * We move the static constants into this class so ProGuard can inline UnsignedLongs entirely
   * unless the user is actually calling a parse method.
   */
  private static final class ParseOverflowDetection {
    private ParseOverflowDetection() {}

      if (rangeMapEntry.getUpperBound().compareTo(rangeToRemove.lowerBound) > 0) {
        // we know ( [ )
        if (rangeMapEntry.getUpperBound().compareTo(rangeToRemove.upperBound) > 0) {
          // we know ( [ ] ), so insert the range ] ) back into the map --
          // it's being split apart
          putRangeMapEntry(
              rangeToRemove.upperBound,
              rangeMapEntry.getUpperBound(),

  /**
   * The current state of the service. This should be written with the lock held but can be read
   * without it because it is an immutable object in a volatile field. This is desirable so that
   * methods like {@link #state}, {@link #failureCause} and notably {@link #toString} can be run
   * without grabbing the lock.
   *

	set := ipset.IPSet{V4Name: "foo-v4", Prefix: "foo", Deps: fakeIPSetDeps}
	m := getFakeDPWithIPSet(server, fakeClientSet, set)
	expectPodRemovedFromIPSet(fakeIPSetDeps, pod.Status.PodIPs)

	// pod is not in fake client, so if this will try to remove annotation, it will fail.
	err := m.RemovePodFromMesh(fakeCtx, pod, true)

	fakeIPSetDeps.AssertExpectations(t)

	assert.NoError(t, err)
}

 * }</pre>
 *
 * <p>For separator-based splitters that do not use {@code omitEmptyStrings}, an input string
 * containing {@code n} occurrences of the separator naturally yields an iterable of size {@code n +
 * 1}. So if the separator does not occur anywhere in the input, a single substring is returned
 * containing the entire input. Consequently, all splitters split the empty string to {@code [""]}
 * (note: even fixed-length splitters).
 *

    /*
     * We adjust approxLog10 and approxPow until they're equal to floor(log10(x)) and
     * 10^floor(log10(x)).
     */

    if (approxCmp > 0) {
      /*
       * The code is written so that even completely incorrect approximations will still yield the
       * correct answer eventually, but in practice this branch should almost never be entered, and
       * even then the loop should not run more than once.

func (r *RingBuffer) Reset() {
	r.mu.Lock()
	defer r.mu.Unlock()

	// Set error so any readers/writers will return immediately.
	r.setErr(errors.New("reset called"), true)
	if r.block {
		r.readCond.Broadcast()
		r.writeCond.Broadcast()
	}

	// Unlock the mutex so readers/writers can finish.
	r.mu.Unlock()
	r.wg.Wait()
	r.mu.Lock()
	r.r = 0
	r.w = 0
	r.err = nil