chore: prepare release notes for 0.6.0 

docs: prepare release notes 

style: fix whitespace (black error) 

chore: prepare release notes for 0.3.0 

chore: create changelog for 0.2.1 

chore: prepare release notes for 0.2.0 

chore: prepare release notes for 0.1.1 

fix: install correct build dependency 

refactor: rename test directories 

refactor: move serialization arguments to `BaseModel`