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fix: accept a2a agent framework in config #7137

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fix: accept a2a agent framework in config #7137

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27 changes: 27 additions & 0 deletions tests/unit/vertexai/test_genai_types.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
# 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.

import pytest

from vertexai._genai import types


@pytest.mark.parametrize(
"config_type",
[types.AgentEngineConfig, types.CreateAgentEngineConfig, types.UpdateAgentEngineConfig],
)
def test_agent_engine_configs_accept_a2a_framework(config_type):
config = config_type(agent_framework="a2a")

assert config.agent_framework == "a2a"
72 changes: 60 additions & 12 deletions vertexai/_genai/types/common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8885,13 +8885,21 @@ class CreateAgentEngineConfig(_common.BaseModel):
""",
)
agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
] = Field(
default=None,
description="""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down Expand Up @@ -9031,12 +9039,20 @@ class CreateAgentEngineConfigDict(TypedDict, total=False):
"""

agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
]
"""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down Expand Up @@ -9552,13 +9568,21 @@ class UpdateAgentEngineConfig(_common.BaseModel):
""",
)
agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
] = Field(
default=None,
description="""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down Expand Up @@ -9707,12 +9731,20 @@ class UpdateAgentEngineConfigDict(TypedDict, total=False):
"""

agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
]
"""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down Expand Up @@ -20352,13 +20384,21 @@ class AgentEngineConfig(_common.BaseModel):
""",
)
agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
] = Field(
default=None,
description="""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down Expand Up @@ -20548,12 +20588,20 @@ class AgentEngineConfigDict(TypedDict, total=False):
"""

agent_framework: Optional[
Literal["google-adk", "langchain", "langgraph", "ag2", "llama-index", "custom"]
Literal[
"google-adk",
"langchain",
"langgraph",
"ag2",
"llama-index",
"custom",
"a2a",
]
]
"""The agent framework to be used for the Agent Engine.
The OSS agent framework used to develop the agent.
Currently supported values: "google-adk", "langchain", "langgraph",
"ag2", "llama-index", "custom".
"ag2", "llama-index", "custom", "a2a".
If not specified:
- If `agent` is specified, the agent framework will be auto-detected.
- If `source_packages` is specified, the agent framework will
Expand Down