/// <summary>
/// Create user defined role.
/// </summary>
/// <param name="policy">admin configuration parameters, pass in null for defaults</param>
/// <param name="roleName">role name</param>
/// <param name="privileges">privileges assigned to the role.</param>
/// <exception cref="AerospikeException">if command fails </exception>
public void CreateRole(AdminPolicy policy, string roleName, IList<Privilege> privileges)
{
AdminCommand command = new AdminCommand();
command.CreateRole(cluster, policy, roleName, privileges);
}