Imports golang.org/x/net/html github.com/andreyvit/diff github.com/sendgrid/sendgrid-go github.com/sendgrid/sendgrid-go/helpers/mail gopkg.in/yaml.v2 github.com/alecthomas/template github.com/andybalholm/cascadia Standard library imports bytes crypto/md5 encoding/hex flag fmt io/ioutil log net/http os strings time