feat(py-sdk): async steps (#246)

* feat: async wrapper

* feat: async examples

* release: bump version 0.15.1

python-sdk/examples/async/event_test.py

@@ -0,0 +1,13 @@
+from hatchet_sdk import new_client
+from dotenv import load_dotenv
+
+load_dotenv()
+
+client = new_client()
+
+client.event.push(
+    "user:create",
+    {
+        "test": "test"
+    }
+)

python-sdk/examples/async/worker.py

@@ -0,0 +1,36 @@
+from hatchet_sdk import Hatchet, Context
+from dotenv import load_dotenv
+import asyncio
+
+load_dotenv()
+
+hatchet = Hatchet(debug=True)
+
+@hatchet.workflow(on_events=["user:create"])
+class AsyncWorkflow:
+    def __init__(self):
+        self.my_value = "test"
+
+    @hatchet.step(timeout='5s')
+    def step1(self, context: Context):
+        async def async_step1():
+            print("started step1")
+            await asyncio.sleep(2)
+            print("finished step1")
+            return 'result'
+
+        res = asyncio.run(async_step1())
+        print(res)
+        return {'test': 'test'}
+
+    @hatchet.step(parents=["step1"],timeout='4s')
+    async def step2(self, context):
+        print("started async step2")
+        await asyncio.sleep(2)
+        print("finished step2")
+
+workflow = AsyncWorkflow()
+worker = hatchet.worker('test-worker', max_runs=4)
+worker.register_workflow(workflow)
+
+worker.start()