diff --git a/backend/parsers/windmill-parser-py/src/lib.rs b/backend/parsers/windmill-parser-py/src/lib.rs
index 4c523df0b2..72124e5b21 100644
--- a/backend/parsers/windmill-parser-py/src/lib.rs
+++ b/backend/parsers/windmill-parser-py/src/lib.rs
@@ -122,6 +122,11 @@ pub fn parse_python_signature(code: &str) -> anyhow::Result<MainArgSignature> {
 fn parse_expr(e: &Box<Expr>) -> Typ {
     match e.as_ref() {
         Expr::Name(ExprName { id, .. }) => parse_typ(id.as_ref()),
+        Expr::Attribute(x) => if x.value.as_name_expr().is_some_and(|x| x.id.as_str() == "wmill") {
+            parse_typ(x.attr.as_str())
+        } else {
+            Typ::Unknown
+        },
         Expr::Subscript(x) => match x.value.as_ref() {
             Expr::Name(ExprName { id, .. }) => match id.as_str() {
                 "Literal" => {
@@ -365,6 +370,7 @@ def main(test1: str,
 import os
 
 def main(test1: str,
+    s3o: wmill.S3Object,
     name = \"test\",
     byte: bytes = bytes(1)): return
 
@@ -383,6 +389,13 @@ def main(test1: str,
                         default: None,
                         has_default: false
                     },
+                    Arg {
+                        otyp: None,
+                        name: "s3o".to_string(),
+                        typ: Typ::Resource("S3Object".to_string()),
+                        default: None,
+                        has_default: false
+                    },
                     Arg {
                         otyp: None,
                         name: "name".to_string(),
diff --git a/backend/parsers/windmill-parser-wasm/pkg/package.json b/backend/parsers/windmill-parser-wasm/pkg/package.json
index ee2f1cd2f7..b06163c41e 100644
--- a/backend/parsers/windmill-parser-wasm/pkg/package.json
+++ b/backend/parsers/windmill-parser-wasm/pkg/package.json
@@ -3,7 +3,7 @@
   "collaborators": [
     "Ruben Fiszel <ruben@windmill.dev>"
   ],
-  "version": "1.274.0",
+  "version": "1.276.0",
   "files": [
     "windmill_parser_wasm_bg.wasm",
     "windmill_parser_wasm.js",
diff --git a/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm.js b/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm.js
index 961c8adfcb..244f41dc14 100644
--- a/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm.js
+++ b/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm.js
@@ -97,15 +97,6 @@ function getInt32Memory0() {
     return cachedInt32Memory0;
 }
 
-const cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );
-
-if (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };
-
-function getStringFromWasm0(ptr, len) {
-    ptr = ptr >>> 0;
-    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
-}
-
 function addHeapObject(obj) {
     if (heap_next === heap.length) heap.push(heap.length + 1);
     const idx = heap_next;
@@ -115,6 +106,15 @@ function addHeapObject(obj) {
     return idx;
 }
 
+const cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );
+
+if (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };
+
+function getStringFromWasm0(ptr, len) {
+    ptr = ptr >>> 0;
+    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
+}
+
 let cachedFloat64Memory0 = null;
 
 function getFloat64Memory0() {
@@ -549,10 +549,6 @@ function __wbg_get_imports() {
         getInt32Memory0()[arg0 / 4 + 1] = len1;
         getInt32Memory0()[arg0 / 4 + 0] = ptr1;
     };
-    imports.wbg.__wbindgen_error_new = function(arg0, arg1) {
-        const ret = new Error(getStringFromWasm0(arg0, arg1));
-        return addHeapObject(ret);
-    };
     imports.wbg.__wbindgen_boolean_get = function(arg0) {
         const v = getObject(arg0);
         const ret = typeof(v) === 'boolean' ? (v ? 1 : 0) : 2;
@@ -574,6 +570,10 @@ function __wbg_get_imports() {
         const ret = BigInt.asUintN(64, arg0);
         return addHeapObject(ret);
     };
+    imports.wbg.__wbindgen_error_new = function(arg0, arg1) {
+        const ret = new Error(getStringFromWasm0(arg0, arg1));
+        return addHeapObject(ret);
+    };
     imports.wbg.__wbindgen_number_get = function(arg0, arg1) {
         const obj = getObject(arg1);
         const ret = typeof(obj) === 'number' ? obj : undefined;
@@ -589,7 +589,7 @@ function __wbg_get_imports() {
         const ret = getObject(arg0) in getObject(arg1);
         return ret;
     };
-    imports.wbg.__wbg_eval_69b0e521a846e4c2 = function(arg0, arg1) {
+    imports.wbg.__wbg_eval_64ad5673bb06b186 = function(arg0, arg1) {
         const ret = eval(getStringFromWasm0(arg0, arg1));
         return addHeapObject(ret);
     };
diff --git a/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm_bg.wasm b/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm_bg.wasm
index e1fa4518bd..888a023151 100644
Binary files a/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm_bg.wasm and b/backend/parsers/windmill-parser-wasm/pkg/windmill_parser_wasm_bg.wasm differ
diff --git a/frontend/package.json b/frontend/package.json
index 99050342bd..dd32cb515a 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -133,7 +133,7 @@
 		"vscode-languageclient": "~9.0.1",
 		"vscode-uri": "~3.0.8",
 		"vscode-ws-jsonrpc": "~3.1.0",
-		"windmill-parser-wasm": "^1.274.0",
+		"windmill-parser-wasm": "^1.276.0",
 		"y-monaco": "^0.1.4",
 		"y-websocket": "^1.5.0",
 		"yaml": "^2.3.4",