Merge pull request #288 from mandiant/release/v2.0.0b3

Release v2.0.0b3

Merge pull request #286 from mandiant/worktree-fix-mutable-defaults

Fix mutable default arguments across codebase

Merge pull request #263 from mandiant/wb-unicorn2

Merge pull request #242 from dmsft/master

version bump

version bump

version bump

version bump

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Merge pull request #185 from raymondlleong/API_Adds

Minor API Additions