use expo_push_notification_client::{Expo, ExpoClientOptions, ExpoPushMessage};

// Initialize Expo client
let expo = Expo::new(ExpoClientOptions {
    access_token: Some(access_token),
});

// Define Expo Push Tokens to send notifications to
let expo_push_tokens = ["ExponentPushToken[xxxxxxxxxxxxxxxxxxxxxx]"];

// Build Expo Push Message with specified tokens
let expo_push_message = ExpoPushMessage::builder(expo_push_tokens).build()?;

// Send push notifications using Expo client
let tickets = expo.send_push_notifications(expo_push_message).await;

// Extract push notification IDs from tickets
let mut expo_push_ids = vec![];
for ticket in tickets {
    match ticket {
        ExpoPushTicket::Ok(ticket) => {
            expo_push_ids.push(ticket.id);
        }
        ExpoPushTicket::Error(e) => {
            // Handle error
        }
    }
}

// Retrieve push notification receipts using Expo client
expo.get_push_notification_receipts(expo_push_ids).await;

use expo_push_notification_client::{Expo, ExpoClientOptions, ExpoPushMessage, Priority, Sound, InterruptionLevel};

// Build Expo Push Message with detailed configurations
#[derive(Serialize)]
struct Data {
    data: String,
}

let expo_push_message = ExpoPushMessage::builder(["ExponentPushToken[xxxxxxxxxxxxxxxxxxxxxx]"])
    .body("body")
    .data(&Data { data: "data".to_string()})?
    .ttl(100)
    .expiration(100)
    .priority(Priority::High)
    .subtitle("subtitle")
    .sound(Sound::Default)
    .badge(1)
    .channel_id("channel_id")
    .category_id("category_id")
    .mutable_content(true)
    .interruption_level(InterruptionLevel::TimeSensitive)
    .title("title")
    .build()?;