SDE FeatureClass Granting and Revoking Privilege with ArcObjects

How can I with ArcObjects GRANT or REVOKE Privileges like SELECT, UPDATE on SDE FeatureClasses to/from Roles?

The equivalent in normal Oracle would be something like this:

GRANT SELECT ON SCHEMA.TABLE TO SOME_ROLE;
REVOKE SELECT ON SCHEMA.TABLE FROM SOME_ROLE;

I can’t seem to find the interface to perform this task, and it may not exists?

My dream would be to have an Interface like this:

public interface IPrivilegeManager
{
    void Grant(string privilegeName, string schemaOwnerName, string featureClassName, string roleName);
    void Revoke(string privilegeName, string schemaOwnerName, string featureClassName, string roleName);
}

Related Q: For a SDE FeatureClasses list all Roles that have been Granted any Privileges on it, and which Privileges each Role have on it

var name = ((IDataset) featureClass).FullName;
var sqlPrivilege = name as ISQLPrivilege;
if (sqlPrivilege != null)
{
    sqlPrivilege.Grant("USER_OR_ROLE_NAME", (int) esriSQLPrivilege.esriSelectPrivilege, false);
}