Added the price override as requested in 3. Updated prices to include current model generations.
0.6
Added new Turbo Models to list.
0.5
Prices Updated.
0.4
Added more models and updated pricing.
0.3
Fix for accessing the usage cost to match changes in `openai` package.
0.2
* shmuel44 corrected the link to the GitHub repository in setup.py * Corrected the README * Updated version numbering on GitHub for compatibility with pypi