Added API route for synthesize

app.py

@@ -97,7 +97,7 @@ def main():
         with gr.Row(variant="panel"):
             audio = gr.Audio()
 
-        def synthesize_audio(text_str: str, model_name_str: str, speaker_str: str):
+        def synthesize_audio(text_str: str, model_name_str: str, speaker_str: str, api_name="synthesize"):
             """
             gets utterance to synthesize from `text` Textbox
             and speaker name from `speaker` dropdown list.