ec2b666284
Continuous Integration / Pre-commit Linter (push) Waiting to run
Continuous Integration / Mypy Check (Python 3.10) (push) Waiting to run
Continuous Integration / Mypy Check (Python 3.11) (push) Waiting to run
Continuous Integration / Mypy Check (Python 3.12) (push) Waiting to run
Continuous Integration / Mypy Check (Python 3.13) (push) Waiting to run
Continuous Integration / Unit Tests (Python 3.10) (push) Waiting to run
Continuous Integration / Unit Tests (Python 3.11) (push) Waiting to run
Continuous Integration / Unit Tests (Python 3.12) (push) Waiting to run
Continuous Integration / Unit Tests (Python 3.13) (push) Waiting to run
Continuous Integration / Unit Tests (Python 3.14) (push) Waiting to run
Continuous Integration / A2A v0.3 Tests (Python 3.10) (push) Waiting to run
Continuous Integration / A2A v0.3 Tests (Python 3.11) (push) Waiting to run
Continuous Integration / A2A v0.3 Tests (Python 3.12) (push) Waiting to run
Continuous Integration / A2A v0.3 Tests (Python 3.13) (push) Waiting to run
Continuous Integration / A2A v0.3 Tests (Python 3.14) (push) Waiting to run
Copybara PR Handler / close-imported-pr (push) Waiting to run
93 lines
2.4 KiB
Python
93 lines
2.4 KiB
Python
# Copyright 2026 Google LLC
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import re
|
|
|
|
from google.adk import Agent
|
|
from google.adk import Event
|
|
from google.adk import Workflow
|
|
from google.adk.workflow import JoinNode
|
|
|
|
|
|
def process_input(node_input: str):
|
|
"""Validates the input is a valid 4-digit year."""
|
|
match = re.search(r"\b\d{4}\b", node_input)
|
|
if not match:
|
|
yield Event(message="Please provide a valid 4-digit year (e.g., 1955).")
|
|
raise ValueError("Invalid year format.")
|
|
|
|
yield Event(state={"year": match.group(0)})
|
|
|
|
|
|
find_name = Agent(
|
|
name="find_name",
|
|
instruction="""
|
|
Find the name of one famous person who was born in this year: {year}.
|
|
Return ONLY their name, nothing else.
|
|
""",
|
|
)
|
|
|
|
|
|
generate_bio = Agent(
|
|
name="generate_bio",
|
|
instruction="""
|
|
Write a short, engaging 3-sentence biography for the specified person.
|
|
""",
|
|
)
|
|
|
|
|
|
# Sub-workflow that acts as a single node in the parent workflow
|
|
find_famous_person = Workflow(
|
|
name="find_famous_person",
|
|
edges=[("START", find_name, generate_bio)],
|
|
)
|
|
|
|
|
|
find_historical_event = Agent(
|
|
name="find_historical_event",
|
|
instruction="""
|
|
Describe one highly significant historical event that occurred in this year: {year}.
|
|
Keep the description to 2 sentences.
|
|
""",
|
|
)
|
|
|
|
join_for_aggregation = JoinNode(name="join_for_aggregation")
|
|
|
|
|
|
def aggregate_results(node_input: dict[str, str], year: str):
|
|
"""Combines outputs from parallel branches found in context state."""
|
|
|
|
combined_message = (
|
|
f"# Year: {year}\n\n"
|
|
"## Famous Person Bio:\n\n"
|
|
f"{node_input['find_famous_person']}\n\n"
|
|
"## Historical Event:\n\n"
|
|
f"{node_input['find_historical_event']}"
|
|
)
|
|
yield Event(message=combined_message)
|
|
|
|
|
|
root_agent = Workflow(
|
|
name="root_agent",
|
|
edges=[
|
|
(
|
|
"START",
|
|
process_input,
|
|
(find_famous_person, find_historical_event),
|
|
join_for_aggregation,
|
|
aggregate_results,
|
|
),
|
|
],
|
|
)
|