Rust SDK receiving client

let client = PauboxClient::new("YOUR_API_KEY");

let domains = client.list_receiving_domains().await?;
for d in &domains {
    println!("{}", d.domain.as_deref().unwrap_or(""));
}

let domain = client.create_receiving_domain(Some("support")).await?;
println!("{}", domain.domain.as_deref().unwrap_or("")); // support.inbound.paubox.email

let domain = client.get_receiving_domain(1).await?;

client.delete_receiving_domain(1).await?;

let mailboxes = client.list_receiving_mailboxes(domain_id).await?;

let mailbox = client.create_receiving_mailbox(domain_id, "intake", "SecurePass123!", None).await?;
println!("{}", mailbox.email_address.unwrap_or_default());

let mailbox = client.get_receiving_mailbox(domain_id, mailbox_id).await?;

client.delete_receiving_mailbox(domain_id, mailbox_id).await?;

let resp = client.list_received_emails(Some(10), None, None).await?;
for e in &resp.data {
    println!("{}: {}", e.email_id, e.subject.as_deref().unwrap_or(""));
}

// Cursor pagination
let next = client.list_received_emails(
    None,
    resp.data.last().map(|e| e.email_id.as_str()),
    None,
).await?;

let email = client.get_received_email(email_id).await?;
println!("{}", email.text_body.as_deref().unwrap_or(""));

let attachment = &email.attachments[0];
let data: Vec<u8> = client
    .get_received_email_attachment(&email.email_id, &attachment.id)
    .await?;
std::fs::write("report.pdf", &data)?;