Add kaggle user agent to gcp integration clients.

[vimota]

No description provided.

[vimota]

This works for all integrations except the automl TablesClient, they have a bug in their client initialization where if you provide a client_info= parameter it throws TypeError: type object got multiple values for keyword argument 'client_info'.

Cause of it is this line, where they get a client_info from kwargs, but then pass it as a parameter again, so it's passed in twice (as a named parameter and in the original kwargs):
https://github.com/googleapis/google-cloud-python/blob/9e5ca9a6e468d246e3aab5392ef0eeb4e802ec3d/automl/google/cloud/automl_v1beta1/tables/tables_client.py#L109

This should be easy to fix, I'll sent them an PR/Issue for it.

[rosbo]

Note, the master build is failing and is likely the cause of this failure. I will try fixing it today. Once master is green, you will have to rebase from master to get all the latest changes and make sure the build is green. Thanks

[rosbo]

I have fixed the master build. It should be good now.

[mcollins42]

LGTM!

[mcollins42]

Is that an actual error that you see if this is set? I was hoping that Python would just ignore the kwargs value if a named value was already passed.

[vimota]

Yeah unfortunately it's a type error :( https://stackoverflow.com/questions/21764770/typeerror-got-multiple-values-for-argument

[vimota]

I have fixed the master build. It should be good now.

Thanks, rebased and rerunning!