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adk-python/src/google/adk/sessions/_session_util.py
Hangfei Lin a4adb739c0 Create a developer folder and add samples.
PiperOrigin-RevId: 755885332
2025-05-07 09:26:19 -07:00

44 lines
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Python

# 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.
"""Utility functions for session service."""
import base64
from typing import Any, Optional
from google.genai import types
def encode_content(content: types.Content):
"""Encodes a content object to a JSON dictionary."""
encoded_content = content.model_dump(exclude_none=True)
for p in encoded_content["parts"]:
if "inline_data" in p:
p["inline_data"]["data"] = base64.b64encode(
p["inline_data"]["data"]
).decode("utf-8")
return encoded_content
def decode_content(
content: Optional[dict[str, Any]],
) -> Optional[types.Content]:
"""Decodes a content object from a JSON dictionary."""
if not content:
return None
for p in content["parts"]:
if "inline_data" in p:
p["inline_data"]["data"] = base64.b64decode(p["inline_data"]["data"])
return types.Content.model_validate(content)