func FindByID(model string) (string, error) {
    const body = `func {{ .funcName }}(db *gorm.DB, id int) (*{{ .model }}, error) {
    var obj {{ .model }}
    if err := db.Find(&obj, id).Error; err != nil {
        return nil, xerrors.Errorf("failed to find {{ .model }} with id %v: %w", id, err)