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chore: import upstream snapshot with attribution
2026-07-13 13:25:13 +08:00

80 lines
1.9 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.
from google.adk import Agent
from google.adk import Event
from google.adk import Workflow
from google.adk.workflow import node
from pydantic import BaseModel
class TopicExplanation(BaseModel):
topic: str
explanation: str
def process_input(node_input: str):
"""Puts user input in the state."""
return Event(state={"topic": node_input})
find_related_topics = Agent(
name="find_related_topics",
instruction=(
'Given the specific topic "{topic}", generate a list of 3 '
"related topics."
),
output_schema=list[str],
)
@node(parallel_worker=True)
def make_upper_case(node_input: str):
yield node_input.upper()
explain_topic = Agent(
name="explain_topic",
instruction=(
"Explain how the following topic relates the the original topic: "
'"{topic}".'
),
parallel_worker=True,
output_schema=TopicExplanation,
)
def aggregate(node_input: list[TopicExplanation]):
return Event(
message="\n\n---\n\n".join(
f"{explanation.topic}: {explanation.explanation}"
for explanation in node_input
),
)
root_agent = Workflow(
name="root_agent",
edges=[
(
"START",
process_input,
find_related_topics,
make_upper_case,
explain_topic,
aggregate,
),
],
)