TheAirline.Models.Airliners.AirlinerClass.GetFacilities C# (CSharp) Method

        public List<AirlinerFacility> GetFacilities()
        {
            return Facilities.Values.ToList();
        }

 //adds a new airliner class to the airliner
 public void AddAirlinerClass(AirlinerClass airlinerClass)
 {
     if (airlinerClass != null)
     {
         if (Classes.Exists(c => c.Type == airlinerClass.Type))
         {
             Classes[Classes.FindIndex(c => c.Type == airlinerClass.Type)] = airlinerClass;
         }
         else
         {
             Classes.Add(airlinerClass);
             if (airlinerClass.GetFacilities().Count == 0)
             {
                 airlinerClass.CreateBasicFacilities(Airline);
             }
         }
     }
 }