// Int64Must : Must Conver "val" to a rounded Int64
Int64Must : Must Conver "val" to a rounded Int64
// Int64Must : Must Conver " val " to a rounded Int64
func Int64Must(val interface{}, def ...int64) int64 {
	ret, err := Int64(val)
	if err != nil && len(def) > 0 {
		return def[0]
	}
	return ret
}
func Int64Must ( val interface { } , def ... int64 ) int64 { ret , err := Int64 ( val ) if err != nil && len ( def ) > 0 { return def [ 0 ] } return ret }
Int64Must : Must Conver "val" to a rounded Int64
Int64Must : Must Conver " val " to a rounded Int64