diff --git a/.lune/http_server.luau b/.lune/http_server.luau
index 8970455..a3a484b 100644
--- a/.lune/http_server.luau
+++ b/.lune/http_server.luau
@@ -11,14 +11,14 @@ local function pong(request: NetRequest): string
 	return `Pong!\n{request.path}\n{request.body}`
 end
 
-local function teapot(request: NetRequest): NetResponse
+local function teapot(_request: NetRequest): NetResponse
 	return {
 		status = 418,
 		body = "🫖",
 	}
 end
 
-local function notFound(request: NetRequest): NetResponse
+local function notFound(_request: NetRequest): NetResponse
 	return {
 		status = 404,
 		body = "Not Found",
diff --git a/.lune/websocket_client.luau b/.lune/websocket_client.luau
index 5fa015b..fe6ae5b 100644
--- a/.lune/websocket_client.luau
+++ b/.lune/websocket_client.luau
@@ -22,7 +22,7 @@ end)
 
 -- Send one message per second and time it
 
-for i = 1, 5 do
+for _ = 1, 5 do
 	local start = os.clock()
 	socket.send(tostring(1))
 	local response = socket.next()
diff --git a/packages/cli/src/gen/selene_defs.rs b/packages/cli/src/gen/selene_defs.rs
index fd9a6dc..d542a7e 100644
--- a/packages/cli/src/gen/selene_defs.rs
+++ b/packages/cli/src/gen/selene_defs.rs
@@ -117,10 +117,16 @@ fn doc_item_to_selene_yaml_mapping(item: &DefinitionsItem) -> Result<YamlMapping
         let mut args = YamlSequence::new();
         for arg_type in item.arg_types() {
             let mut arg_mapping = YamlMapping::new();
-            let (type_str, type_opt) = match arg_type.strip_suffix('?') {
+            let (type_str, mut type_opt) = match arg_type.strip_suffix('?') {
                 Some(stripped) => (stripped, true),
                 None => (arg_type, false),
             };
+            let simplified = simplify_type_str_into_primitives(
+                type_str.trim_start_matches('(').trim_end_matches(')'),
+            );
+            if simplified.contains("...") {
+                type_opt = true;
+            }
             if type_opt {
                 arg_mapping.insert(
                     YamlValue::String("required".to_string()),
@@ -129,9 +135,7 @@ fn doc_item_to_selene_yaml_mapping(item: &DefinitionsItem) -> Result<YamlMapping
             }
             arg_mapping.insert(
                 YamlValue::String("type".to_string()),
-                YamlValue::String(simplify_type_str_into_primitives(
-                    type_str.trim_start_matches('(').trim_end_matches(')'),
-                )),
+                YamlValue::String(simplified),
             );
             args.push(YamlValue::Mapping(arg_mapping));
         }
@@ -155,6 +159,8 @@ fn simplify_type_str_into_primitives(type_str: &str) -> String {
             primitives.push("string".to_string());
         } else if type_inner == "boolean" {
             primitives.push("bool".to_string());
+        } else if type_inner == "thread" {
+            primitives.push("any".to_string());
         } else {
             primitives.push(type_inner.to_string());
         }