alloy_custom_http_transport.rs

    let client = reqwest::Client::builder()
            .pool_idle_timeout(Duration::from_secs(90))
            .pool_max_idle_per_host(10)
            .timeout(Duration::from_secs(30))
            .connect_timeout(Duration::from_secs(10))
            .tcp_keepalive(Duration::from_secs(60))
            .tcp_nodelay(true)
            .build()
            .expect("Failed to create HTTP client");
    let http_client = RpcClient::builder()
        .transport(Http::with_client(client, rpc_url), false);
    let provider = ProviderBuilder::new()
        .connect_client(http_client);