define "Is Currently Taking ACEI or ARB or ARNI":
  exists (
          [MedicationRequest] ActiveACEIOrARBOrARNI
            let ACE_ARB_ARNI_Reference_Ids: [Medication: "ACE Inhibitor or ARB or ARNI"] ACEIOrARBOrARNI return ACEIOrARBOrARNI.id 
/*,             DrugPeriod: if ActiveACEIOrARBOrARNI.dosageInstruction is null then null as Interval<DateTime> else
                   First( ( collapse (
                       ActiveACEIOrARBOrARNI.dosageInstruction doseInstruction
                       return doseInstruction.timing.repeat.bounds.toInterval()) 
                          ) DrugPeriods sort by start of $this )
            with AHA."Heart Failure Outpatient Encounter with History of Moderate or Severe LVSD" ModerateOrSevereLVSDHFOutpatientEncounter 
              such that DrugPeriod overlaps after day of ModerateOrSevereLVSDHFOutpatientEncounter.period*/
            where (
                    ( ActiveACEIOrARBOrARNI.medication as Concept ) in "ACE Inhibitor or ARB or ARNI"
                     or ( ActiveACEIOrARBOrARNI.medication as Reference ).reference.getId() in ACE_ARB_ARNI_Reference_Ids
                     )
         and ActiveACEIOrARBOrARNI.overlapsAfterHeartFailureOutpatientEncounter()
         and ActiveACEIOrARBOrARNI.status in { 'active', 'completed' } 
         and ActiveACEIOrARBOrARNI.intent in { 'order', 'original-order', 'reflex-order', 'filler-order', 'instance-order' }
         and ActiveACEIOrARBOrARNI.doNotPerform is not true
            ) 

and ActiveACEIOrARBOrARNI.overlapsAfterHeartFailureOutpatientEncounter()