How to use the vscode-azureextensionui.ResourceGroupListStep.isNameAvailable function in vscode-azureextensionui

protected async isRelatedNameAvailable(wizardContext: IIntegrationAccountWizardContext, name: string): Promise {
        return ResourceGroupListStep.isNameAvailable(wizardContext, name);
    }

protected async isRelatedNameAvailable(wizardContext: IAzureLogicAppWizardContext, name: string): Promise {
        return ResourceGroupListStep.isNameAvailable(wizardContext, name);
    }

protected async isRelatedNameAvailable(wizardContext: IAppServiceWizardContext, name: string): Promise {
        const tasks: Promise[] = [ResourceGroupListStep.isNameAvailable(wizardContext, name)];
        if (wizardContext.newSiteKind === AppKind.functionapp) {
            tasks.push(StorageAccountListStep.isNameAvailable(wizardContext, name));
        } else {
            tasks.push(AppServicePlanListStep.isNameAvailable(wizardContext, name, name));
        }

        return (await Promise.all(tasks)).every((v: boolean) => v);
    }
}

protected async isRelatedNameAvailable(wizardContext: ICosmosDBWizardContext, name: string): Promise {
        return await ResourceGroupListStep.isNameAvailable(wizardContext, name);
    }