main.py•2.07 kB
# Copyright 2025 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.
#
# SPDX-License-Identifier: Apache-2.0
import structlog
from genkit.ai import Genkit
from genkit.plugins.vertex_ai.model_garden import VertexAIModelGarden, model_garden_name
logger = structlog.get_logger(__name__)
ai = Genkit(
plugins=[
VertexAIModelGarden(
location='us-central1',
),
],
)
@ai.flow()
async def say_hi(name: str) -> str:
"""Generate a greeting for the given name.
Args:
name: The name of the person to greet.
Returns:
The generated greeting response.
"""
response = await ai.generate(
model=model_garden_name('meta/llama-3.2-90b-vision-instruct-maas'),
config={'temperature': 1},
prompt=f'hi {name}',
)
return response.message.content[0].root.text
@ai.flow()
async def say_hi_stream(name: str) -> str:
"""Say hi to a name and stream the response.
Args:
name: The name to say hi to.
Returns:
The response from the OpenAI API.
"""
stream, _ = ai.generate_stream(
model=model_garden_name('meta/llama-3.2-90b-vision-instruct-maas'),
config={'temperature': 1},
prompt=f'hi {name}',
)
result = ''
async for data in stream:
for part in data.content:
result += part.root.text
return result
async def main() -> None:
await logger.ainfo(await say_hi('John Doe'))
await logger.ainfo(await say_hi_stream('John Doe'))
if __name__ == '__main__':
ai.run_main(main())