Update api doc

ki4070ma · ki4070ma · commit 2f4f948f8e3f · 2019-04-29T01:04:10.000+09:00
diff --git a/appium/webdriver/extensions/power.py b/appium/webdriver/extensions/power.py
@@ -33,11 +33,11 @@ def set_power_ac(self, ac_state):
         """Emulate power state change on the connected emulator.
 
         :Args:
-         - state: The power ac state to be set
+         - ac_state: The power ac state to be set
 
         :Usage:
-            self.driver.set_power_state('on')
-            self.driver.set_power_state('off')
+            self.driver.set_power_ac('off')
+            self.driver.set_power_ac('on')
         """
         self.execute(Command.SET_POWER_AC, {'state': ac_state})
 
