```rust
use appwrite::Client;
use appwrite::services::Oauth2;
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let client = Client::new();
client.set_endpoint("https://<REGION>.cloud.appwrite.io/v1"); // Your API Endpoint
client.set_session(""); // The user session to authenticate with
client.set_project("<YOUR_PROJECT_ID>"); // Your project ID
let oauth2 = Oauth2::new(&client);
let result = oauth2.list_organizations(
Some(1), // optional
Some(0), // optional
Some("<SEARCH>") // optional
).await?;
let _ = result;
Ok(())
}
```