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https://github.com/langchain-ai/langgraph.git
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Remove non-state Graph (#4872)
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@@ -20,7 +20,7 @@ my-app/
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|-- openai_agent.py # code for your graph
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```
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where the graph is defined in `openai_agent.py`.
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where the graph is defined in `openai_agent.py`.
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### No rebuild
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@@ -28,11 +28,11 @@ In the standard LangGraph API configuration, the server uses the compiled graph
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```python
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from langchain_openai import ChatOpenAI
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from langgraph.graph import END, START, MessageGraph
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from langgraph.graph import END, START, StateGraph, MessagesState
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model = ChatOpenAI(temperature=0)
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graph_workflow = MessageGraph()
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graph_workflow = StateGraph(MessagesState)
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graph_workflow.add_node("agent", model)
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graph_workflow.add_edge("agent", END)
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@@ -61,7 +61,7 @@ To make your graph rebuild on each new run with custom configuration, you need t
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from typing import Annotated
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from typing_extensions import TypedDict
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from langchain_openai import ChatOpenAI
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from langgraph.graph import END, START, MessageGraph
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from langgraph.graph import END, START
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from langgraph.graph.state import StateGraph
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from langgraph.graph.message import add_messages
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from langgraph.prebuilt import ToolNode
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@@ -144,4 +144,4 @@ Finally, you need to specify the path to your graph-making function (`make_graph
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}
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```
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See more info on LangGraph API configuration file [here](../reference/cli.md#configuration-file)
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See more info on LangGraph API configuration file [here](../reference/cli.md#configuration-file)
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@@ -95,7 +95,7 @@ my-app/
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## Define Graphs
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Implement your graphs! Graphs can be defined in a single file or multiple files. Make note of the variable names of each [CompiledGraph][langgraph.graph.graph.CompiledGraph] to be included in the LangGraph application. The variable names will be used later when creating the [LangGraph configuration file](../reference/cli.md#configuration-file).
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Implement your graphs! Graphs can be defined in a single file or multiple files. Make note of the variable names of each [CompiledStateGraph][langgraph.graph.state.CompiledStateGraph] to be included in the LangGraph application. The variable names will be used later when creating the [LangGraph configuration file](../reference/cli.md#configuration-file).
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Example `agent.py` file, which shows how to import from other modules you define (code for the modules is not shown here, please see [this repository](https://github.com/langchain-ai/langgraph-example) to see their implementation):
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@@ -108,7 +108,7 @@ my-app/
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## Define Graphs
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Implement your graphs! Graphs can be defined in a single file or multiple files. Make note of the variable names of each [CompiledGraph][langgraph.graph.graph.CompiledGraph] to be included in the LangGraph application. The variable names will be used later when creating the [LangGraph configuration file](../reference/cli.md#configuration-file).
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Implement your graphs! Graphs can be defined in a single file or multiple files. Make note of the variable names of each [CompiledStateGraph][langgraph.graph.state.CompiledStateGraph] to be included in the LangGraph application. The variable names will be used later when creating the [LangGraph configuration file](../reference/cli.md#configuration-file).
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Example `agent.py` file, which shows how to import from other modules you define (code for the modules is not shown here, please see [this repository](https://github.com/langchain-ai/langgraph-example-pyproject) to see their implementation):
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@@ -12,9 +12,9 @@
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"\n",
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"\n",
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"1. **Run the graph** with initial inputs using `invoke` or `stream` APIs.\n",
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"2. **Identify a checkpoint in an existing thread**: Use the [`get_state_history()`][langgraph.graph.graph.CompiledGraph.get_state_history] method to retrieve the execution history for a specific `thread_id` and locate the desired `checkpoint_id`. \n",
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"2. **Identify a checkpoint in an existing thread**: Use the [`get_state_history()`][langgraph.graph.state.CompiledStateGraph.get_state_history] method to retrieve the execution history for a specific `thread_id` and locate the desired `checkpoint_id`. \n",
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" Alternatively, set a [breakpoint](../../../concepts/breakpoints/) before the node(s) where you want execution to pause. You can then find the most recent checkpoint recorded up to that breakpoint.\n",
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"3. **(Optional) modify the graph state**: Use the [`update_state`][langgraph.graph.graph.CompiledGraph.update_state] method to modify the graph’s state at the checkpoint and resume execution from alternative state.\n",
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"3. **(Optional) modify the graph state**: Use the [`update_state`][langgraph.graph.state.CompiledStateGraph.update_state] method to modify the graph’s state at the checkpoint and resume execution from alternative state.\n",
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"4. **Resume execution from the checkpoint**: Use the `invoke` or `stream` APIs with an input of `None` and a configuration containing the appropriate `thread_id` and `checkpoint_id`.\n",
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"\n",
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"## Example\n",
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@@ -36,41 +36,6 @@
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- aget_subgraphs
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- with_config
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::: langgraph.graph.graph.Graph
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options:
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show_if_no_docstring: true
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show_root_heading: true
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show_root_full_path: false
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members:
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- add_node
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- add_edge
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- add_conditional_edges
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- compile
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::: langgraph.graph.graph.CompiledGraph
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options:
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show_if_no_docstring: true
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show_root_heading: true
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show_root_full_path: false
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members:
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- stream
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- astream
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- invoke
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- ainvoke
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- get_state
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- aget_state
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- get_state_history
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- aget_state_history
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- update_state
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- aupdate_state
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- bulk_update_state
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- abulk_update_state
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- get_graph
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- aget_graph
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- get_subgraphs
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- aget_subgraphs
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- with_config
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::: langgraph.graph.message
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options:
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members:
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@@ -89,7 +89,7 @@
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"execution_count": null,
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"id": "baf669a0-04ee-492d-80d8-8fcb658ed128",
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"metadata": {},
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"outputs": [],
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@@ -313,8 +313,8 @@
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"\n",
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" builder.add_edge(\"finalizer\", END)\n",
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"\n",
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" # These functions let the step be used in a MessageGraph\n",
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" # or a StateGraph with 'messages' as the key.\n",
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" # These functions let the step be used in a\n",
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" # StateGraph with 'messages' as the key.\n",
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" def encode(x: Union[Sequence[AnyMessage], PromptValue]) -> dict:\n",
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" \"\"\"Ensure the input is the correct format.\"\"\"\n",
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" if isinstance(x, PromptValue):\n",
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