Utilize 'Flag' convenience function and migrate from [] to {} as appropriate

clipboard.py

@@ -14,16 +14,15 @@
 
 import pyclip
 
-from sshare.plugins.config import Argument
 from sshare.plugins.config import Flag
 from sshare.plugins.config import NoDefault
 from sshare.plugins.source import Raw
 
-plugin_type = [ "source", "result" ]
+plugin_type = { "source", "result" }
 
 activate = {
-    "source": [ "from_clipboard" ],
-    "result": [ "to_clipboard" ],
+    "source": { "from_clipboard" },
+    "result": { "to_clipboard" },
 }
 config = {
     "protocol": "https",
@@ -32,18 +31,14 @@ config = {
     "path": "",
 }
 args = {
-    "from_clipboard": Argument(
+    "from_clipboard": Flag(
         short="p",
         long="paste",
-        action="store_const",
-        const=Flag,
         help="Upload the contents of the clipboard"
     ),
-    "to_clipboard": Argument(
+    "to_clipboard": Flag(
         short="c",
         long="copy",
-        action="store_const",
-        const=Flag,
         help="Copy the resultant URL to the clipboard"
     ),
 }

latest.py

@@ -22,7 +22,7 @@ from sshare.plugins.source import File
 
 plugin_type = "source"
 
-activate = [ "directory" ]
+activate = { "directory" }
 config = {
     "directory": NoDefault
 }

notification.py

@@ -14,13 +14,12 @@
 
 from desktop_notifier import DesktopNotifierSync, Urgency, Button
 
-from sshare.plugins.config import Argument
 from sshare.plugins.config import Flag
 from sshare.plugins.config import NoDefault
 
-plugin_type = [ "result" ]
+plugin_type = "result"
 
-activate = [ "activate" ]
+activate = { "notify" }
 config = {
     "protocol": "https",
     "host": NoDefault,
@@ -28,11 +27,8 @@ config = {
     "path": "",
 }
 args = {
-    "activate": Argument(
+    "notify": Flag(
         short="n",
-        long="notify",
-        action="store_const",
-        const=Flag,
         help="Send a desktop notification"
     )
 }