Imports github.com/google/uuid github.com/skip2/go-qrcode google.golang.org/protobuf/proto google.golang.org/protobuf/reflect/protoreflect google.golang.org/protobuf/runtime/protoimpl Standard library imports crypto/hmac crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 encoding/base32 encoding/base64 encoding/binary errors fmt hash math net/http net/url os reflect strings sync time unicode