use postman2::PostmanClient;
use postman2::model::*;
#[tokio::main]
async fn main() {
let client = PostmanClient::from_env();
let collection_uid = "your collection uid";
let response = client
.update_collection(collection_uid)
.collection(::serde_json::json!({}))
.send()
.await
.unwrap();
println!("{:#?}", response);
}