$ua->default_header('Content-Type' => "application/x-www-form-urlencoded");
    $ua->default_header('oauth_signature' => "$signature");
    $ua->default_header('Authorization' => '"OAuth realm="Twitter API"');
    $ua->default_header('oauth_consumer_key' => "blablabla");
    $ua->default_header('oauth_nonce' => "$nonce");
    $ua->default_header('oauth_signature_method' => "HMAC-SHA1");
    $ua->default_header('oauth_timestamp' => "$epoch");
    $ua->default_header('oauth_token' => "$token_final");
    $ua->default_header('oauth_version' => "1.0");