System.Security.SecurityRuntime.FrameDescHelper C# (CSharp) Method

        private static bool FrameDescHelper(FrameSecurityDescriptor secDesc,
                                               IPermission demandIn, 
                                               PermissionToken permToken,
                                               RuntimeMethodHandle rmh)
        {
            return secDesc.CheckDemand((CodeAccessPermission) demandIn, permToken, rmh);
        }