Update for 2022 API changes

cmd/helperbot/model.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"strconv"
 	"strings"
 	"time"
 
@@ -109,3 +110,18 @@ func (m *BotModel) GetString(path []string) (string, error) {
 func (m *BotModel) SetString(path []string, val string) error {
 	return m.SetBytes(path, []byte(val))
 }
+
+func (m *BotModel) GetInt(path []string) (int, error) {
+	bts, err := m.GetBytes(path)
+	if err != nil {
+		return 0, err
+	}
+	if len(bts) == 0 {
+		return 0, nil
+	}
+	return strconv.Atoi(string(bts))
+}
+
+func (m *BotModel) SetInt(path []string, val int) error {
+	return m.SetString(path, strconv.Itoa(val))
+}