give me an example of how to implement app intents

To implement app intents, you can follow the guidance provided in the WWDC sessions. Here's a brief overview of how to get started:

1. Define Core Actions and Content: Use the App Intents framework to define what your app's core actions and content are. This allows system features like Siri and Spotlight to understand and present them.

2. Structure Intents: Structure your app's functionality into flexible intents. Avoid creating multiple intents for the same task. Instead, use parameters to handle variations within a single intent. For example, instead of creating separate intents for different reminders, use a parameter to specify which reminder to open.

3. Parameter Summaries: Ensure that parameter summaries are readable and understandable. They should clearly describe what the intent does, which is crucial for users exploring intents in the shortcuts drawer.

4. Perform Method: Each intent should have a perform method that executes the action. This method should return a result, even if it's empty.

5. Open App When Necessary: Decide when your app should open as part of the intent. For example, if an intent results in a change in the app UI, it might be appropriate to open the app to show this change.

For a more detailed example and code implementation, you can refer to the session Bring your app’s core features to users with App Intents (08:06) where the process of building the code is discussed.