Sensitive info like Usernames, Passwords, tokens etc are not exported from configs
But to be certain, simply export your flow, paste into a text/code editor, search for known sensitive info - XXXXX it out (if there is any)
To export flows, press CTRL+E and copy the flow code
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In order to make code more readable and importable it is important to surround your code with three backticks
```
like this
```
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See this post for more details - How to share code or flow json