Build, test, and deploy a custom app on Reasoning Engine

importvertexai
fromvertexai.previewimport reasoning_engines
# TODO(developer): Update and un-comment below lines
# PROJECT_ID = "your-project-id"
# staging_bucket = "gs://YOUR_BUCKET_NAME"
vertexai .init(
 project=PROJECT_ID, location="us-central1", staging_bucket=staging_bucket
)
classSimpleAdditionApp:
 defquery(self, a: int, b: int) -> str:
"""Query the application.
 Args:
 a: The first input number
 b: The second input number
 Returns:
 int: The additional result.
 """
 return f"{int(a)} + {int(b)} is {int(a+b)}"
# Locally test
app = SimpleAdditionApp()
app.query(a=1, b=2)
# Create a remote app with Reasoning Engine.
# This may take 1-2 minutes to finish.
reasoning_engine = reasoning_engines .ReasoningEngine .create(
 SimpleAdditionApp(),
 display_name="Demo Addition App",
 description="A simple demo addition app",
 requirements=["cloudpickle==3"],
 extra_packages=[],
)
# Example response:
# Using bucket YOUR_BUCKET_NAME
# Writing to gs://YOUR_BUCKET_NAME/reasoning_engine/reasoning_engine.pkl
# ...
# ReasoningEngine created. Resource name: projects/123456789/locations/us-central1/reasoningEngines/123456
# To use this ReasoningEngine in another session:
# reasoning_engine = vertexai.preview.reasoning_engines.ReasoningEngine('projects/123456789/locations/...