public virtual Task <ChainReturnValue <TReturnType> > ExecuteUp(ExecArgs <TParameterType, TReturnType> execArgs)
{
return(Task.FromResult(new ChainReturnValue <TReturnType>()
{
Value = execArgs.PreviousReturnValue
}));
}
public abstract Task <BreakableChainReturnValue <TReturnType> > ExecuteDown(ExecArgs <TParameterType, TReturnType> execArgs);