public void Setup()
{
gateway = new BraintreeGateway
{
Environment = Environment.DEVELOPMENT,
MerchantId = "integration_merchant_id",
PublicKey = "integration_public_key",
PrivateKey = "integration_private_key"
};
XmlDocument attributesXml = CreateAttributesXml();
attributes = new NodeWrapper(attributesXml).GetNode("//disbursement");
}