public bool IsValid(PostingEngineEnvironment env, Transaction element)
{
if (element.AccrualId == null)
{
return(true);
}
var validAccrual = env.IsValidAccrual(element.AccrualId);
if (!validAccrual)
{
env.AddMessage($"trade does not tie back to a valid accrual {element.AccrualId}");
}
return(validAccrual);
}