Improved and tested the work with multiple providers (GH-8). Also, added unit tests for each module of the package, as well as typing in the missing places.
All Submissions:
[x] Have you followed the guidelines in our Contributing document?
[x] Have you checked to ensure there aren't other open Pull Requests for the same update/change?
Changes to Core Features:
[x] Have you added an explanation of what your changes do and why you'd like us to include them?
[x] Have you updated the documentation related to the changes you have made?
[x] Have you written new tests for your core changes, as applicable?
[x] Have you successfully run tests with your changes locally?
Motivation:
Improved and tested the work with multiple providers (GH-8). Also, added unit tests for each module of the package, as well as typing in the missing places.
All Submissions:
Changes to Core Features: