SDK-2997: Add launch_platform_client method

src/galaxy/api/consts.py

@@ -99,6 +99,7 @@ class Feature(Enum):
     VerifyGame = "VerifyGame"
     ImportFriends = "ImportFriends"
     ShutdownPlatformClient = "ShutdownPlatformClient"
+    LaunchPlatformClient = "LaunchPlatformClient"
 
 
 class LicenseType(Enum):

src/galaxy/api/plugin.py

@@ -107,6 +107,9 @@ class Plugin:
         self._register_notification("shutdown_platform_client", self.shutdown_platform_client)
         self._detect_feature(Feature.ShutdownPlatformClient, ["shutdown_platform_client"])
 
+        self._register_notification("launch_platform_client", self.launch_platform_client)
+        self._detect_feature(Feature.LaunchPlatformClient, ["launch_platform_client"])
+
         self._register_method("import_friends", self.get_friends, result_name="friend_info_list")
         self._detect_feature(Feature.ImportFriends, ["get_friends"])
 
@@ -657,6 +660,11 @@ class Plugin:
         This method is called by the GOG Galaxy Client."""
         raise NotImplementedError()
 
+    async def launch_platform_client(self) -> None:
+        """Override this method to launch platform client.
+        This method is called by the GOG Galaxy Client."""
+        raise NotImplementedError()
+
     async def get_friends(self) -> List[FriendInfo]:
         """Override this method to return the friends list
         of the currently authenticated user.