add banbanmini backend

talkingq-url/interfaces/asr.py

@@ -0,0 +1,27 @@
+from abc import ABC, abstractmethod
+
+class ASR(ABC):
+    @abstractmethod
+    async def connect(self):
+        
+        pass
+
+    @abstractmethod
+    async def send_audio(self, audio_data: bytes):
+        
+        pass
+
+    @abstractmethod
+    async def send_end(self):
+        
+        pass
+
+    @abstractmethod
+    async def receive_results(self):
+        
+        pass
+
+    @abstractmethod
+    async def close(self):
+        
+        pass