Deserialize to custom model where possible (#242)

Author: kapunga

core/src/main/scala/sttp/openai/requests/completions/CompletionsRequestBody.scala

@@ -77,7 +77,7 @@ object CompletionsRequestBody {
         jsonValue =>
           SnakePickle.read[ujson.Value](jsonValue) match {
             case Str(value) =>
-              byCompletionModelValue.getOrElse(value, throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $value")))
+              byCompletionModelValue.getOrElse(value, CustomCompletionModel(value))
             case e => throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $e"))
           }
       )

core/src/main/scala/sttp/openai/requests/completions/chat/ChatRequestBody.scala

@@ -231,7 +231,7 @@ object ChatRequestBody {
         jsonValue =>
           SnakePickle.read[ujson.Value](jsonValue) match {
             case Str(value) =>
-              byChatModelValue.getOrElse(value, throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $value")))
+              byChatModelValue.getOrElse(value, CustomChatCompletionModel(value))
             case e => throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $e"))
           }
       )

core/src/main/scala/sttp/openai/requests/completions/edit/EditRequestBody.scala

@@ -44,7 +44,7 @@ object EditRequestBody {
         jsonValue =>
           SnakePickle.read[ujson.Value](jsonValue) match {
             case Str(value) =>
-              byEditModelValue.getOrElse(value, throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $value")))
+              byEditModelValue.getOrElse(value, CustomEditModel(value))
             case e => throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $e"))
           }
       )

core/src/main/scala/sttp/openai/requests/finetunes/FineTunesRequestBody.scala

@@ -65,7 +65,7 @@ object FineTuneModel {
       jsonValue =>
         SnakePickle.read[ujson.Value](jsonValue) match {
           case Str(value) =>
-            byFineTuneModelValue.getOrElse(value, throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $value")))
+            byFineTuneModelValue.getOrElse(value, CustomFineTuneModel(value))
           case e => throw DeserializationOpenAIException(new Exception(s"Could not deserialize: $e"))
         }
     )