23R2 Migration Regarding LSSelect class

Hi,

   I have an issue while migrating from 23R1 to 23R2 with the LSSelect.cs  class file which has been removed in the 23R2 below is the code which removed from the  23R2 and it was available in 23R1

public abstract class LSSelect<TLSMaster, TLSDetail, Where> : PXSelect<TLSMaster>, IEqualityComparer<TLSMaster>

where TLSMaster : class, IBqlTable, ILSPrimary, new()

where TLSDetail : class, IBqlTable, ILSDetail, new()

where Where : IBqlWhere, new()

{

}

so, can you please guide me how to resolve the issue in 23R2.