Fixes

• Converts the operationPromise defined in all class methods to use the .then syntax to use async/await syntax
• Adds Try/Catch in the function body itself instead the callback being passed into setPromiseCallback
• Creates the change using a codemod
• Changes all 591 instances across the class methods. However, this change does not touch the instances in top-level functions. This can be pursued if desired.

Checklist

• I acknowledge that all my contributions will be made under the project's license
• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the Contribution Guidelines and my PR follows them
• I have titled the PR appropriately
• I have updated my branch with the main branch
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation about the functionality in the appropriate .md file
• I have added inline documentation to the code I modified

No new tests required for the changes. Ran make test and all tests passed.