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78 lines
1.9 KiB
Python
78 lines
1.9 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Literal
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from google.adk import Agent
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from google.adk import Event
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from google.adk import Workflow
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from pydantic import BaseModel
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class InputCategory(BaseModel):
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category: Literal["question", "statement", "other"]
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def process_input(node_input: str):
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return Event(state={"input": node_input})
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classify_input = Agent(
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name="classify_input",
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instruction=(
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"Based on this input, decide which category it belongs to: {input}"
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),
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output_schema=InputCategory,
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output_key="category",
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)
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def route_on_category(category: InputCategory):
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"""Yields an Event with a specific route based on the classification."""
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yield Event(route=category.category)
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answer_question = Agent(
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name="answer_question",
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instruction="""Answer the question: {input}""",
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)
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comment_on_statement = Agent(
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name="comment_on_statement",
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instruction="""Comment on the statement: {input}""",
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)
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def handle_other():
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yield Event(
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message="Sorry I can only anwer questions or comment on statements."
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)
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root_agent = Workflow(
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name="root_agent",
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edges=[
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("START", process_input, classify_input, route_on_category),
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(
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route_on_category,
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{
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"question": answer_question,
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"statement": comment_on_statement,
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"other": handle_other,
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},
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),
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],
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)
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