Imports github.com/lionelbarrow/braintree-go/date github.com/lionelbarrow/braintree-go/customfields github.com/lionelbarrow/braintree-go/xmlnil Standard library imports bytes context crypto/tls encoding/base64 encoding/xml errors fmt io io/ioutil log net net/http net/url strconv strings time crypto/hmac unicode crypto/sha1 text/template compress/gzip