[ENH] variable args for complete

[samukweku]

PR Description

Please describe the changes proposed in the pull request:

• Uses variable args (*args) for the complete function.

This PR improves complete function API.

PR Checklist

Please ensure that you have done the following:

1. PR in from a fork off your branch. Do not PR from <your_username>:dev, but rather from <your_username>:<feature-branch_name>.

2. If you're not on the contributors list, add yourself to AUTHORS.rst.

3. Add a line to CHANGELOG.md under the latest version header (i.e. the one that is "on deck") describing the contribution.
   • Do use some discretion here; if there are multiple PRs that are related, keep them in a single line.

Automatic checks

There will be automatic checks run on the PR. These include:

• Building a preview of the docs on Netlify
• Automatically linting the code
• Making sure the code is documented
• Making sure that all tests are passed
• Making sure that code coverage doesn't go down.

Relevant Reviewers

Please tag maintainers to review.

• @ericmjl
• @hectormz
• @nvamsikrishna05
• @loganthomas

[samukweku]

noticed that the docs are not rendering properly (links not working etc). @ericmjl @hectormz might need a refresher on what to check

[codecov]

Codecov Report

Merging #857 (fd8e7bc) into dev (c62333e) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev     #857      +/-   ##
==========================================
- Coverage   94.92%   94.92%   -0.01%     
==========================================
  Files          19       19              
  Lines        2090     2089       -1     
==========================================
- Hits         1984     1983       -1     
  Misses        106      106              

[ericmjl]

Wonderful work, @samukweku! I love the direction you've taken here, making the API much more uniform with variable args 😄

[ericmjl]

@samukweku could you resolve the conflicts and then ping back here? I think the PR has been open long enough that we should merge. 😄

[ericmjl]

Thanks @samukweku!