util: fix param type for embedRights

admin.go

@@ -111,7 +111,7 @@ func (b *Bot) Unban(chat *Chat, user *User) error {
 func (b *Bot) Restrict(chat *Chat, member *ChatMember) error {
 	prv, until := member.Rights, member.RestrictedUntil
 
-	params := map[string]string{
+	params := map[string]interface{}{
 		"chat_id":    chat.Recipient(),
 		"user_id":    member.User.Recipient(),
 		"until_date": strconv.FormatInt(until, 10),
@@ -136,7 +136,7 @@ func (b *Bot) Restrict(chat *Chat, member *ChatMember) error {
 func (b *Bot) Promote(chat *Chat, member *ChatMember) error {
 	prv := member.Rights
 
-	params := map[string]string{
+	params := map[string]interface{}{
 		"chat_id": chat.Recipient(),
 		"user_id": member.User.Recipient(),
 	}

bot.go

@@ -1265,7 +1265,7 @@ func (b *Bot) SetGroupStickerSet(chat *Chat, setName string) error {
 
 // SetGroupPermissions sets default chat permissions for all members.
 func (b *Bot) SetGroupPermissions(chat *Chat, perms Rights) error {
-	params := map[string]string{
+	params := map[string]interface{}{
 		"chat_id": chat.Recipient(),
 	}
 	embedRights(params, perms)

util.go

@@ -185,7 +185,7 @@ func processButtons(keys [][]InlineButton) {
 	}
 }
 
-func embedRights(p map[string]string, rights Rights) {
+func embedRights(p map[string]interface{}, rights Rights) {
 	data, _ := json.Marshal(rights)
 	_ = json.Unmarshal(data, &p)
 }

util_test.go

@@ -26,3 +26,24 @@ func TestExtractMessage(t *testing.T) {
 	_, err = extractMessage(data)
 	assert.NoError(t, err)
 }
+
+func TestEmbedRights(t *testing.T) {
+	rights := NoRestrictions()
+	params := map[string]interface{}{
+		"chat_id": "1",
+		"user_id": "2",
+	}
+	embedRights(params, rights)
+
+	expected := map[string]interface{}{
+		"chat_id":                   "1",
+		"user_id":                   "2",
+		"can_be_edited":             true,
+		"can_send_messages":         true,
+		"can_send_media_messages":   true,
+		"can_send_polls":            true,
+		"can_send_other_messages":   true,
+		"can_add_web_page_previews": true,
+	}
+	assert.Equal(t, expected, params)
+}