Map<Object, Object> result = Maps.newHashMap();
            for (Object key : keys) {
              Object value = new Object();
              result.put(key, value);
              // add extra entries
              result.put(value, key);
            }
            return result;
          }
        };
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().build(loader);

            this.treeHandle.ensureDFSResolved();
            if ( this.transportContext.getConfig().isStrictResourceLifecycle() ) {
                // one extra share to keep the tree alive
                return this.treeHandle.acquire();
            }
            return this.treeHandle;
        }
        return this.treeHandle.acquire();
    }


    /**

### RBAC

- When configuring a JWT authenticator:
  
  If `username.expression` used 'claims.email', then 'claims.email_verified' must have been used in `username.expression` or `extra[*].valueExpression` or `claimValidationRules[*].expression`. An example claim validation rule expression that matches the validation automatically applied when `username.claim` is set to 'email' is 'claims.?email_verified.orValue(true)'.

				store.group.Forget(user)
			}

			deleted = true
		}
	}

	if deleted {
		cache.updatedAt = time.Now()
	}

	return nil
}

// ParentUserInfo contains extra info about a the parent user.
type ParentUserInfo struct {
	subClaimValue string
	roleArns      set.StringSet
}

// GetAllParentUsers - returns all distinct "parent-users" associated with STS

- Resolves a spurious "Unknown discovery response content-type" error in client-go discovery requests by tolerating extra content-type parameters in API responses ([#117637](https://github.com/kubernetes/kubernetes/pull/117637), [@seans3](https://github.com/seans3)) [SIG API Machinery]

- Added Extra.DisableAvailableConditionController for Generic Control Plane setup. ([#125650](https://github.com/kubernetes/kubernetes/pull/125650), [@mjudeikis](https://github.com/mjudeikis)) [SIG API Machinery]

- kubeadm: Validate kubeconfig files in case of external CA mode. ([#70537](https://github.com/kubernetes/kubernetes/pull/70537), [@yagonobre](https://github.com/yagonobre))
- kubeadm: The writable config file option for extra volumes is renamed to readOnly with a reversed meaning. With readOnly defaulted to false (as in pod specs). ([#70495](https://github.com/kubernetes/kubernetes/pull/70495), [@rosti](https://github.com/rosti))

		if objInfo.DeleteMarker {
			if opts.VersionID == "" {
				return &GetObjectReader{
					ObjInfo: objInfo,
				}, toObjectErr(errFileNotFound, bucket, object)
			}
			// Make sure to return object info to provide extra information.
			return &GetObjectReader{
				ObjInfo: objInfo,
			}, toObjectErr(errMethodNotAllowed, bucket, object)
		}
		return nil, err
	}

	// check preconditions before reading the stream.

  // readOnly is Optional: defaults to false (read/write). ReadOnly here will force
  // the ReadOnly setting in VolumeMounts.
  // +optional
  optional bool readOnly = 4;

  // options is Optional: this field holds extra command options if any.
  // +optional
  map<string, string> options = 5;
}

// FlexVolume represents a generic volume resource that is
// provisioned/attached using an exec based plugin.