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