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79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
# Copyright 2025 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 abc import abstractmethod
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from typing import AsyncGenerator
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from google.genai import types
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from .llm_response import LlmResponse
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class BaseLlmConnection:
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"""The base class for a live model connection."""
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@abstractmethod
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async def send_history(self, history: list[types.Content]):
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"""Sends the conversation history to the model.
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You call this method right after setting up the model connection.
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The model will respond if the last content is from user, otherwise it will
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wait for new user input before responding.
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Args:
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history: The conversation history to send to the model.
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"""
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pass
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@abstractmethod
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async def send_content(self, content: types.Content):
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"""Sends a user content to the model.
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The model will respond immediately upon receiving the content.
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If you send function responses, all parts in the content should be function
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responses.
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Args:
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content: The content to send to the model.
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"""
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pass
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@abstractmethod
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async def send_realtime(self, blob: types.Blob):
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"""Sends a chunk of audio or a frame of video to the model in realtime.
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The model may not respond immediately upon receiving the blob. It will do
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voice activity detection and decide when to respond.
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Args:
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blob: The blob to send to the model.
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"""
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pass
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@abstractmethod
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async def receive(self) -> AsyncGenerator[LlmResponse, None]:
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"""Receives the model response using the llm server connection.
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Args: None.
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Yields:
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LlmResponse: The model response.
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"""
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pass
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@abstractmethod
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async def close(self):
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"""Closes the llm server connection."""
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pass
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