Clean up dbus::arg::Variant type alias

src/padfoot/var_arg.rs

@@ -0,0 +1,19 @@
+use dbus::arg::{RefArg, Variant};
+
+pub type VarArg = Variant<Box<dyn RefArg + 'static>>;
+
+pub fn var_arg(item: Box<dyn RefArg + 'static>) -> VarArg {
+    Variant(item)
+}
+
+pub fn var_str(item: String) -> VarArg {
+    var_arg(Box::new(item))
+}
+
+pub fn var_str_vec(item: Vec<String>) -> VarArg {
+    var_arg(Box::new(item))
+}
+
+pub fn var_u32(item: u32) -> VarArg {
+    var_arg(Box::new(item))
+}