/**
   * Attempts to cancel execution of this step. This attempt will fail if the step has already
   * completed, has already been cancelled, or could not be cancelled for some other reason. If
   * successful, and this step has not started when {@code cancel} is called, this step should never
   * run.
   *
   * <p>If successful, causes the objects captured by this step (if already started) and its input

    V value = entry.getValueReference().get();
    if (value == null) {
      return null;
    }

    if (isExpired(entry, now)) {
      return null;
    }
    return value;
  }

  // expiration

  /** Returns true if the entry has expired. */
  boolean isExpired(ReferenceEntry<K, V> entry, long now) {
    checkNotNull(entry);

    def setup(self) -> None:
        if self.openapi_url:
            urls = (server_data.get("url") for server_data in self.servers)
            server_urls = {url for url in urls if url}

            async def openapi(req: Request) -> JSONResponse:
                root_path = req.scope.get("root_path", "").rstrip("/")
                if root_path not in server_urls:
                    if root_path and self.root_path_in_servers:

est(\n      Selector.DATA_TOGGLE\n    )[0]\n\n    if (rootElement) {\n      const input = this._element.querySelector(Selector.INPUT)\n\n      if (input) {\n        if (input.type === 'radio') {\n          if (input.checked &&\n            this._element.classList.contains(ClassName.ACTIVE)) {\n            triggerChangeEvent = false\n          } else {\n            const activeElement = rootElement.querySelector(Selector.ACTIVE)\n\n            if (activeElement) {\n              $(activeElement)....

				}
			}
			if g.metricsGroupOpts.dependGlobalIAMSys {
				if globalIAMSys == nil {
					return []MetricV2{}, nil
				}
			}
			if g.metricsGroupOpts.dependGlobalLockServer {
				if globalLockServer == nil {
					return []MetricV2{}, nil
				}
			}
			if g.metricsGroupOpts.dependGlobalIsDistErasure {
				if !globalIsDistErasure {
					return []MetricV2{}, nil
				}
			}

{\n  // arrow depends on keepTogether in order to work\n  if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {\n    return data;\n  }\n\n  let arrowElement = options.element;\n\n  // if arrowElement is a string, suppose it's a CSS selector\n  if (typeof arrowElement === 'string') {\n    arrowElement = data.instance.popper.querySelector(arrowElement);\n\n    // if arrowElement is not found, don't run the modifier\n    if (!arrowElement) {\n      return data;\n    }\n  } else {\n...

                current_tags = []
                if tags:
                    current_tags.extend(tags)
                if route.tags:
                    current_tags.extend(route.tags)
                current_dependencies: List[params.Depends] = []
                if dependencies:
                    current_dependencies.extend(dependencies)
                if route.dependencies:

protocol: TCP - port: 443 targetPort: 15017 name: tcp-webhook protocol: TCP {{- if not (regexMatch "^([0-9]*\\.){3}[0-9]*$" .Values.global.remotePilotAddress) }} # if the remotePilotAddress is not an IP addr, we use ExternalName type: ExternalName externalName: {{ .Values.global.remotePilotAddress }} {{- end }} {{- if .Values.global.ipFamilyPolicy }} ipFamilyPolicy: {{ .Values.global.ipFamilyPolicy }} {{- end }} {{- if .Values.global.ipFamilies }} ipFamilies: {{- range .Values.global.ipFamilies }}...

class org.hamcrest.core.IsNull Creates a matcher that matches if examined object is null. nullValue(Class<T>) - Static method in class org.hamcrest.core.IsNull Creates a matcher that matches if examined object is null. nullValue() - Static method in class org.hamcrest.CoreMatchers Creates a matcher that matches if examined object is null. nullValue(Class<T>) - Static method in class org.hamcrest.CoreMatchers Creates a matcher that matches if examined object is null. O or(Matcher<? super X>) - Method...

</li>
</ol>

<h3 id="If_statements">If statements</h3>

<p>
"If" statements specify the conditional execution of two branches
according to the value of a boolean expression.  If the expression
evaluates to true, the "if" branch is executed, otherwise, if
present, the "else" branch is executed.
</p>

<pre class="ebnf">