/// <summary>
 /// Retrieve the collection of built-in and custom roles for the client.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='client'>
 /// </param>
 public static RoleCollection GetRetrieveRoles(this IAccounts operations, string client)
 {
     return(operations.GetRetrieveRolesAsync(client).GetAwaiter().GetResult());
 }