chore: sync sdk code with DeepLearning repo (#141)

Co-authored-by: AssemblyAI <engineering.sdk@assemblyai.com>

Author: he-james

assemblyai/__version__.py

@@ -1 +1 @@
-__version__ = "0.45.0"
+__version__ = "0.45.1"

assemblyai/transcriber.py

@@ -368,6 +368,14 @@ def speech_model(self) -> Optional[str]:
 
         return self._impl.transcript.speech_model
 
+    @property
+    def speech_model_used(self) -> Optional[str]:
+        "The actual speech model that was used for the transcription"
+        if not self._impl.transcript:
+            raise ValueError("The internal Transcript object is None.")
+
+        return self._impl.transcript.speech_model_used
+
     @property
     def text(self) -> Optional[str]:
         "The text transcription of your media file"