/**
     * Is the property true?
     * @param propertyKey The key of the property which is boolean type. (NotNull)
     * @return The determination, true or false. (if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    boolean is(String propertyKey);

    /**
     * Get the value for the key 'domain.title'. <br>

An alias denotes a named type if the type given in the alias declaration is a named type.
</p>

<h3 id="Boolean_types">Boolean types</h3>

<p>
A <i>boolean type</i> represents the set of Boolean truth values
denoted by the predeclared constants <code>true</code>
and <code>false</code>. The predeclared boolean type is <code>bool</code>;
it is a <a href="#Type_definitions">defined type</a>.
</p>

#### kubectl:

- kubeadm: UnifiedControlPlaneImage is replaced by UseHyperKubeImage boolean value. ([#70793](https://github.com/kubernetes/kubernetes/pull/70793), [@rosti](https://github.com/rosti))

- Introduced a new boolean kubelet flag `--fail-cgroupv1`. ([#126031](https://github.com/kubernetes/kubernetes/pull/126031), [@harche](https://github.com/harche)) [SIG API Machinery and Node]

* Added the `writable` boolean option to kubeadm config. This option works on a per-volume basis for `ExtraVolumes` config keys. ([#60428](https://github.com/kubernetes/kubernetes/pull/60428), [@rosti](https://github.com/rosti))

- Pod disruption budgets can now be updated and patched. ([#69867](https://github.com/kubernetes/kubernetes/pull/69867), [@davidmccormick](https://github.com/davidmccormick))

pt=S.prototype;function kt(e,a,t,s){var n=ua(),r=c().set(s,a);return n[t](r,e)}function Dt(e,a,t){if(m(e)&&(a=e,e=void 0),e=e||"",null!=a)return kt(e,a,t,"month");for(var s=[],n=0;n<12;n++)s[n]=kt(e,n,t,"month");return s}function Tt(e,a,t,s){a=("boolean"==typeof e?m(a)&&(t=a,a=void 0):(a=e,e=!1,m(t=a)&&(t=a,a=void 0)),a||"");var n,r=ua(),d=e?r._week.dow:0,i=[];if(null!=t)return kt(a,(t+d)%7,s,"day");for(n=0;n<7;n++)i[n]=kt(a,(n+d)%7,s,"day");return i}pt.calendar=function(e,a,t){var s=this._calen...

- Removed `kubectl --dry-run` empty default value and boolean values. `kubectl --dry-run` usage must be specified with `--dry-run=(server|client|none)`. ([#105327](https://github.com/kubernetes/kubernetes/pull/105327), [@julianvmodesto](https://github.com/julianvmodesto))

- Omit comparison with boolean constant ([#101523](https://github.com/kubernetes/kubernetes/pull/101523), [@chuntaochen](https://github.com/chuntaochen)) [SIG CLI and Cloud Provider]