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Eugene Yurtsev
2024-12-12 11:54:04 -05:00
parent f319b1e107
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docs/docs/concepts/human_in_the_loop.md
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@@ -461,29 +461,25 @@ def node_in_parent_graph(state: State):
...
```
----
??? "**Example: Parent and Subgraph Execution Flow**"
**Example: Parent and Subgraph Execution Flow**
Say we have a parent graph with 3 nodes:
If the parent graph has 3 nodes:
**Parent Graph**: `node_1` → `node_2` (subgraph call) → `node_3`
**Parent Graph**: `node_1` → `node_2` (subgraph call) → `node_3`
And the subgraph has 3 nodes, where the second node contains an `interrupt`:
And the subgraph has 3 nodes, where the second node contains an `interrupt`:
**Subgraph**: `sub_node_1` → `sub_node_2` (`interrupt`) → `sub_node_3`
**Subgraph**: `sub_node_1` → `sub_node_2` (`interrupt`) → `sub_node_3`
When resuming the graph, the execution will proceed as follows:
When resuming the graph, the execution will proceed as follows:
1. **Skip `node_1`** in the parent graph (already executed, graph state was saved in snapshot).
2. **Re-execute `node_2`** in the parent graph from the start.
3. **Skip `sub_node_1`** in the subgraph (already executed, graph state was saved in snapshot).
4. **Re-execute `sub_node_2`** in the subgraph from the beginning.
5. Continue with `sub_node_3` and subsequent nodes.
1. **Skip `node_1`** in the parent graph (already executed, graph state was saved in snapshot).
2. **Re-execute `node_2`** in the parent graph from the start.
3. **Skip `sub_node_1`** in the subgraph (already executed, graph state was saved in snapshot).
4. **Re-execute `sub_node_2`** in the subgraph from the beginning.
5. Continue with `sub_node_3` and subsequent nodes.
??? "An example of a subgraph with an interrupt with a parent graph"
This is an example that you can play with to understand how subgraphs work with interrupts.
Here is abbreviated example code that you can use to understand how subgraphs work with interrupts.
It counts the number of times each node is entered and prints the count.
```python