NeptuneLogger doesn't support fetching active experiment.

[blatr]

Hi!

🚀 Feature

Currently NeptuneLogger doesn't support reconnecting to active experiment. Each initialization always creates a new one and there is no option to pass existing experiment id.
However, this feature is already supported by Neptune library and actually implemented in _create_or_get_experiment() method inside NeptuneLogger class.

Proposal

Make it possible to pass optional argument experiment_id to class initialization.
With this replacement _create_or_get_experiment() function will be able to fetch existing experiment during class initialization.

If you don't mind i can make a PR with this small enhancement.

[github-actions]

Hi! thanks for your contribution!, great first issue!

[Borda]

@jakubczakon mind have look? 🐰

[pitercl]

Hi @blatr, I thinks it's a nice idea!
Please be aware, that there's already a PR in progress (#3256) that'll probably come in a superficial conflict with yours, but I don't see any actual problems with this idea.

[stale]

This issue has been automatically marked as stale because it hasn't had any recent activity. This issue will be closed in 7 days if no further activity occurs. Thank you for your contributions, Pytorch Lightning Team!