# ROS 2 actions and executors: server defer

Official ROS 2 actions and executors python main example for server defer. Inspect the pinned source and upstream setup before use.

ID: `ros2-examples-rclpy-actions-minimal-action-server-examples-rclpy-mi-3803ccd83aa4`

Record version: `source-446aa5a250c919ae6a82da763e127c13ae67e5b2e997c631f84bf97ab348bc76`

Hub commit: `3a81abb601c3b4b8fcb9a8bed5ca270e546f5f1a`

## Access

Fetch the pinned repository, verify this source checksum, and use upstream installation and invocation. This record does not install or execute code.

Hub preparation adapter: **false**. Runtime verification: **not_run**.

Upstream setup: https://github.com/ros2/examples/blob/07008852303f2a35a91c65d78046b274a35477ea/README.md

## Source and license

- Repository: https://github.com/ros2/examples
- Pinned source: https://github.com/ros2/examples/blob/07008852303f2a35a91c65d78046b274a35477ea/rclpy/actions/minimal_action_server/examples_rclpy_minimal_action_server/server_defer.py
- Revision: `07008852303f2a35a91c65d78046b274a35477ea`
- Path: `rclpy/actions/minimal_action_server/examples_rclpy_minimal_action_server/server_defer.py`
- Source SHA256: `446aa5a250c919ae6a82da763e127c13ae67e5b2e997c631f84bf97ab348bc76`
- Source bytes: 3924
- Original authors: See pinned upstream source and license notices.
- License: [Apache-2.0](https://github.com/ros2/examples/blob/07008852303f2a35a91c65d78046b274a35477ea/LICENSE)
- License scope: Selected example source code only; preserve upstream copyright and per-file notices. Robot models, datasets, weights, simulator binaries and third-party dependencies retain their separate licenses.

License SHA256: `cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30`

## Requirements

```json
{
  "python": "ROS 2 Jazzy Python 3 / C++ supported toolchain",
  "packages": [
    "ROS 2 Jazzy",
    "rclpy/rclcpp and example package dependencies from package.xml"
  ],
  "display": "Build with colcon and source the ROS 2 overlay. These are action/executor/sensing building blocks, not completed robot manipulation tasks.",
  "execution_domain": "middleware",
  "source_imports": [
    "example_interfaces.action",
    "rclpy",
    "rclpy.action",
    "rclpy.callback_groups",
    "rclpy.executors",
    "rclpy.node",
    "time"
  ]
}
```

## Invocation

```json
{
  "entrypoint": "python rclpy/actions/minimal_action_server/examples_rclpy_minimal_action_server/server_defer.py",
  "notes": "Build with colcon and source the ROS 2 overlay. These are action/executor/sensing building blocks, not completed robot manipulation tasks. No Hub preparation adapter or measured runtime success is claimed."
}
```

## Compatibility

```json
[]
```

Missing environment fields remain unknown. Source discovery labels do not establish robot compatibility.

## Evidence

Level: **source_reviewed**. Runtime verification: **not_run**.

Fetched and SHA-256 checked this immutable source; statically parsed Python or located native main; verified pinned license bytes and checked explicit per-file license identifiers. No upstream code executed.

Source review and contributor reports do not establish task completion. Preserve upstream attribution and licenses.