Added an example showing how to access provider errors#403

AaronDDM merged 1 commit intomainnylas/nylas-python:mainfrom

CUST-3769-python-sdk-doesnt-return-return-error-grow-therapynylas/nylas-python:CUST-3769-python-sdk-doesnt-return-return-error-grow-therapyCopy head branch name to clipboard