bug: fix some issues with return types and missing return statements.

pyasic/config/__init__.py

@@ -116,7 +116,7 @@ class MinerConfig:
         return cls(pools=PoolConfig.from_am_modern(web_conf))
 
     @classmethod
-    def from_inno(cls, web_pools: dict):
+    def from_inno(cls, web_pools: list):
         return cls(pools=PoolConfig.from_inno(web_pools))
 
     @classmethod

pyasic/config/power_scaling.py

@@ -29,6 +29,8 @@ class PowerScalingShutdownEnabled(MinerConfigValue):
         if self.duration is not None:
             cfg["shutdown_duration"] = self.duration
 
+        return cfg
+
 
 @dataclass
 class PowerScalingShutdownDisabled(MinerConfigValue):