When loading webchem, we get a message that `hoardr` overwrites a registered S3 method from `httr`

[jranke]

> library(webchem)
Registered S3 method overwritten by 'hoardr':
  method           from
  print.cache_info httr

This also appears when e.g. roxygenising the webchem package, or e.g. the chents package which depends on webchem.

I also opened an issue in the hoardr package, as it may be the right place to fix the issue.

[stitam]

Thanks @jranke for opening this. It seems the conflict is between httr and hoardr, both export an S3 print method (print.cache_info) with the same name which leads to the namespace conflict. In webchem we are not using this method directly, and I don't think we are using it indirectly either, so the conflict should not break any of the existing functionality in webchem. Did you experience any errors?

@Aariq suggested earlier that we should replace httr with httr2 at some point. I looked into the NAMESPACE file for httr2 and they no longer export this method, so I think switching would eliminate the message.

What do you think?