Update readme

README.md

@@ -15,14 +15,14 @@ grow_value = (
     | Pregel.send_to(value=lambda x: x if len(x) < 10 else None)
 )
 
-pubsub = Pregel(
+app = Pregel(
     grow_value,
     channels={"value": channels.LastValue[str]()},
     input="value",
     output="value",
 )
 
-assert pubsub.invoke("a") == "aaaaaaaa"
+assert app.invoke("a") == "aaaaaaaa"
 
 ```
 
@@ -33,7 +33,7 @@ Check `examples` for more examples.
 - [x] Iterate on API
   - [x] do we want api to receive output from multiple channels in invoke()
   - [x] do we want api to send input to multiple channels in invoke()
-  - [ ] Finish updating tests to new API
+  - [x] Finish updating tests to new API
 - [ ] Implement input_schema and output_schema in Pregel
 - [ ] Implement checkpointing
   - [ ] Save checkpoints at end of each step

examples/readme.py

@@ -6,11 +6,11 @@ grow_value = (
     | Pregel.send_to(value=lambda x: x if len(x) < 10 else None)
 )
 
-pubsub = Pregel(
+app = Pregel(
     grow_value,
     channels={"value": channels.LastValue[str]()},
     input="value",
     output="value",
 )
 
-assert pubsub.invoke("a") == "aaaaaaaa"
+assert app.invoke("a") == "aaaaaaaa"