feature: add supports_power_modes flag.

pyasic/miners/backends/antminer.py

@@ -94,6 +94,7 @@ class AntminerModern(BMMiner):
     data_locations = ANTMINER_MODERN_DATA_LOC
 
     supports_shutdown = True
+    supports_power_modes = True
 
     async def get_config(self) -> MinerConfig:
         data = await self.web.get_miner_conf()

pyasic/miners/backends/auradine.py

@@ -124,6 +124,7 @@ class Auradine(BaseMiner):
     data_locations = AURADINE_DATA_LOC
 
     supports_shutdown = True
+    supports_power_modes = True
     supports_autotuning = True
 
     async def fault_light_on(self) -> bool:

pyasic/miners/backends/btminer.py

@@ -119,6 +119,7 @@ class BTMiner(BaseMiner):
     data_locations = BTMINER_DATA_LOC
 
     supports_shutdown = True
+    supports_power_modes = True
 
     async def _reset_rpc_pwd_to_admin(self, pwd: str):
         try:

pyasic/miners/backends/goldshell.py

@@ -75,6 +75,7 @@ class GoldshellMiner(BFGMiner):
     data_locations = GOLDSHELL_DATA_LOC
 
     supports_shutdown = True
+    supports_power_modes = True
 
     async def get_config(self) -> MinerConfig:
         # get pool data

pyasic/miners/base.py

@@ -47,6 +47,7 @@ class MinerProtocol(Protocol):
     data_locations: DataLocations = None
 
     supports_shutdown: bool = False
+    supports_power_modes: bool = False
     supports_autotuning: bool = False
 
     api_ver: str = None