# async_param_client

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## Description

A ROS2 node that demonstrates asynchronous parameter client operations. It connects to the `parameter_blackboard` node and performs various parameter operations including setting, getting, listing, loading from YAML file, and deleting parameters. This shows how to interact with another node's parameters programmatically.

## Example Usage

```bash
# First, start the parameter blackboard node
ros2 run demo_nodes_cpp parameter_blackboard

# Then run the async parameter client
ros2 run demo_nodes_py async_param_client
```

The client will:
1. Set parameters (int_parameter=10, bool_parameter=False, string_parameter='Fee Fi Fo Fum')
2. List all parameters
3. Get parameter values
4. Load parameters from params.yaml file
5. Delete specified parameters

Expected output:
```
[INFO] [async_param_client]: Setting parameters:
[INFO] [async_param_client]:     int_parameter:
[INFO] [async_param_client]:         successful: True
...
[INFO] [async_param_client]: Listing Parameters:
[INFO] [async_param_client]:     - int_parameter
...
[INFO] [async_param_client]: Getting parameters:
[INFO] [async_param_client]:     - int_parameter: 10
...
[INFO] [async_param_client]: Loading parameters:
...
[INFO] [async_param_client]: Deleting parameters:
...
```

Note: This node requires the `parameter_blackboard` node from demo_nodes_cpp to be running.