add persian+english tts model

model.py

@@ -329,6 +329,8 @@ def get_pretrained_model(repo_id: str, speed: float) -> sherpa_onnx.OfflineTts:
         return chinese_models[repo_id](repo_id, speed)
     elif repo_id in chinese_english_models:
         return chinese_english_models[repo_id](repo_id, speed)
+    elif repo_id in persian_english_models:
+        return persian_english_models[repo_id](repo_id, speed)
     if repo_id in cantonese_models:
         return cantonese_models[repo_id](repo_id, speed)
     elif repo_id in english_models:
@@ -437,6 +439,10 @@ chinese_english_models = {
     "csukuangfj/vits-melo-tts-zh_en|1": _get_vits_hf,  # 1
 }
 
+persian_english_models = {
+    "csukuangfj/vits-piper-fa_en-rezahedayatfar-ibrahimwalk-medium|1": _get_vits_piper,  # 1
+}
+
 chinese_models = {
     "csukuangfj/vits-zh-hf-fanchen-wnj|1": _get_vits_hf,  # 1
     "csukuangfj/vits-zh-hf-fanchen-C|187": _get_vits_hf,  # 187
@@ -781,6 +787,7 @@ language_to_models = {
     "English": list(english_models.keys()),
     "Chinese (Mandarin, 普通话)": list(chinese_models.keys()),
     "Chinese+English": list(chinese_english_models.keys()),
+    "Persian+English": list(persian_english_models.keys()),
     "Cantonese (粤语)": list(cantonese_models.keys()),
     "Min-nan (闽南话)": list(min_nan_models.keys()),
     "Arabic": list(arabic_models.keys()),