public async Task GetIfExists()
        {
            #region Snippet:Managing_KeyVaults_GetAVaultIfExists
            VaultCollection vaultCollection = resourceGroup.GetVaults();

            Vault vault = await vaultCollection.GetIfExistsAsync("foo");

            if (vault != null)
            {
                Console.WriteLine(vault.Data.Name);
            }

            if (await vaultCollection.ExistsAsync("bar"))
            {
                Console.WriteLine("KeyVault 'bar' exists.");
            }
            #endregion
        }