Looking at git, it seems that was introduced in 9.2.

On 10/01/2020 10:32 am, sergio ruiz wrote:
> I am getting:
>
> eval: Symbol’s function definition is void: org-macro--get-property
>
> I am using:
>
> Org mode version 9.1.9 (release_9.1.9-65-g5e4542 @ 
> /Applications/Emacs.app/Contents/Resources/lisp/org/)
> Mark set
>
> Is this a newer function?
>
> Thanks!
>
>
>
>> You can use elisp code to look up the property you want to pass as a 
>> variable:
>>
>> #+BEGIN_SRC shell :var url=(org-macro--get-property "url" "")
>> curl $url
>> #+END_SRC
>>
>>
>
> ----
> peace,
> sergio
> photographer, journalist, visionary
>
> Public Key: 
> https://pgp.key-server.io/pks/lookup?op=get&search=0x69B08F58923AB3A2
> #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV
> @sergio_101@mastodon.social <mailto:sergio_101@mastodon.social>
> https://sergio101.com
> http://www.codeandmusic.com
> http://www.twitter.com/sergio_101
> http://www.facebook.com/sergio101
>