sdk-for-kotlin/docs/examples/java/functions/list-specifications.md

import io.appwrite.Client;
import io.appwrite.coroutines.CoroutineCallback;
import io.appwrite.services.Functions;

Client client = new Client()
    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("<YOUR_PROJECT_ID>") // Your project ID
    .setKey("<YOUR_API_KEY>"); // Your secret API key

Functions functions = new Functions(client);

functions.listSpecifications(new CoroutineCallback<>((result, error) -> {
    if (error != null) {
        error.printStackTrace();
        return;
    }

    System.out.println(result);
}));