feature: add is_mining for bosminers.

pyasic/miners/backends/bosminer.py

@@ -992,3 +992,22 @@ class BOSMiner(BaseMiner):
                     )
             except (IndexError, KeyError):
                 pass
+
+    async def is_mining(self, api_tunerstatus: dict = None) -> Optional[bool]:
+        if not api_tunerstatus:
+            try:
+                api_tunerstatus = await self.api.tunerstatus()
+            except APIError:
+                pass
+
+        if api_tunerstatus:
+            try:
+                running = any(
+                    [
+                        d["TunerRunning"]
+                        for d in api_tunerstatus["TUNERSTATUS"][0]["TunerChainStatus"]
+                    ]
+                )
+                return running
+            except LookupError:
+                pass

pyasic/miners/base.py

@@ -345,6 +345,14 @@ class BaseMiner(ABC):
         """
         pass
 
+    async def is_mining(self, *args, **kwargs) -> Optional[bool]:
+        """Check whether the miner is mining
+
+        Returns:
+            A boolean value representing if the miner is mining.
+        """
+        return None
+
     async def _get_data(self, allow_warning: bool, data_to_get: list = None) -> dict:
         if not data_to_get:
             # everything