refactor: use protocol for BaseMiner and update attributes to be part of the class rather than a __init__ method.

pyasic/miners/antminer/bmminer/X7/L7.py

@@ -18,6 +18,4 @@ from pyasic.miners.types import L7
 
 
 class BMMinerL7(AntminerModern, L7):
-    def __init__(self, ip: str, api_ver: str = "0.0.0"):
-        super().__init__(ip, api_ver)
-        self.supports_shutdown = False
+    supports_shutdown = False