diff --git a/python/function.test.w b/python/function.test.w
index 1535fb24..1a5a59ed 100644
--- a/python/function.test.w
+++ b/python/function.test.w
@@ -8,6 +8,14 @@ bring ses;
 bring fs;
 bring "./lib.w" as python;
 
+class CustomLiftable impl python.ILiftable {
+  pub liftData(): Json {
+    return {
+      "info": "CustomData",
+    };
+  }
+}
+
 let table = new dynamodb.Table(
   attributes: [
     {
@@ -42,6 +50,10 @@ let func = new cloud.Function(new python.InflightFunction(
       obj: emailClient,
       allow: ["sendEmail"],
     },
+    "custom": {
+      obj: new CustomLiftable(),
+      allow: [],
+    }
   },
 ), { env: { "FOO": "bar" } });
 
@@ -51,5 +63,5 @@ new std.Test(inflight () => {
   let res = func.invoke("function1");
   log("res: {res ?? "null"}");
   expect.equal(Json.parse(res!).get("body"), "Hello!");
-  expect.equal(bucket.get("test.txt"), "Hello, world!function1bardynamoDbValue");
+  expect.equal(bucket.get("test.txt"), "Hello, world!function1bardynamoDbValueCustomData");
 }, timeout: 3m) as "invokes the function";
diff --git a/python/lib.w b/python/lib.w
index 2036bd7d..f13b6a22 100644
--- a/python/lib.w
+++ b/python/lib.w
@@ -7,6 +7,10 @@ bring "./sim/api_onrequest_inflight.w" as simapi;
 bring "./tfaws/inflight.w" as aws;
 bring "./tfaws/api_onrequest_inflight.w" as tfawsapi;
 
+pub interface ILiftable {
+  liftData(): Json;
+}
+
 pub class InflightFunction impl cloud.IFunctionHandler {
   _inflightType: str;
   inner: types.IInflight;
diff --git a/python/test-assets/main.py b/python/test-assets/main.py
index 836c3642..c62619cd 100644
--- a/python/test-assets/main.py
+++ b/python/test-assets/main.py
@@ -21,11 +21,14 @@ def handler(event, context):
   table = lifted("table")
   response = table.get(Key={"id":"test"})
   table_value = response["Item"]["body"]
+  
+  custom = lifted("custom")
+  custom_data = custom["liftData"]["info"]
 
   bucket = lifted("bucket")
   value = bucket.get("test.txt")
-  bucket.put("test.txt", value + payload + foo_env + table_value)
-  
+  bucket.put("test.txt", value + payload + foo_env + table_value + custom_data)
+
   return {
     "statusCode": 200,
     "body": "Hello!"
diff --git a/python/test-assets/requirements.txt b/python/test-assets/requirements.txt
index f74c2c75..e72933c0 100644
--- a/python/test-assets/requirements.txt
+++ b/python/test-assets/requirements.txt
@@ -1,4 +1,4 @@
-wingsdk == 0.0.4
+wingsdk == 0.0.6
 requests
 boto3
 Faker
diff --git a/python/tfaws/function.js b/python/tfaws/function.js
index d339586a..bb638ad5 100644
--- a/python/tfaws/function.js
+++ b/python/tfaws/function.js
@@ -96,6 +96,15 @@ module.exports.Function = class Function extends Construct {
           target: "aws",
           props: {},
         }
+      } else if (typeof client.liftData === "function") {
+        client.onLift(this.dummy, allow);
+        clients[clientId] = {
+          type: "@winglibs.python.ILiftable",
+          target: "aws",
+          props: {
+            liftData: client.liftData(),
+          },
+        }
       }
     }
 
diff --git a/python/util.js b/python/util.js
index 8679031a..fee27baf 100644
--- a/python/util.js
+++ b/python/util.js
@@ -227,6 +227,18 @@ const getLifted = (resource, id) => {
         props: {},
       }
     }
+  } else if (typeof resource.liftData === "function") {
+    lifted = {
+      id,
+      path: resource.node.path,
+      handle: makeEnvVarName("LIFT_DATA", resource),
+      type: "@winglibs.python.ILiftable",
+      target: "sim",
+      resource,
+      props: {
+        liftData: resource.liftData(),
+      },
+    };
   }
   
   return lifted;