[foreign-jextract] RFR: adding tensorflow sample

[Jorn Vernee]

On Tue, 8 Sep 2020 08:23:51 GMT, Athijegannathan Sundararajan <sundar at openjdk.org> wrote:

> Adding a simple tensorflow sample that uses tensorflow C API with Panama

Marked as reviewed by jvernee (Committer).

doc/panama_jextract.md line 783:

> 781: ```
> 782:
> 783: ### Python program that creates and saves model

Might also want to mention here that the `tensorflow` package is needed to run the script.

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PR: https://git.openjdk.java.net/panama-foreign/pull/312