*** updated from a comment as original question may not have been clear**
To clarify my question this is the library property helper class Library property helper when you look at the documentation for computed from documentation here Computed documentation
ClassMethod FullNameComputation(cols As %Library.PropertyHelper) As %String
{
return cols.getfield("FirstName")_" "_cols.getfield("LastName")
}
// ...
ClassMethod RecordsComputation(cols As%Library.PropertyHelper) As%Library.ListOfDataTypes
{
Set rsTProp = ##class(%SQL.Statement).%ExecDirect(,"Select * from.png)
.jpg)

