From Xojo Documentation
| This item was deprecated in version 2019r2.
| This method is only available on the macOS platform.
For cross-platform compatibility, use ＃If...＃Endif with the Target... specifiers to make sure you will not attempt to use this method on an incompatible platform.
Find performs a textual search on all Contacts fields for the string passed. It returns an array of all matching Contacts records.