1.0.0 (2020-10-30) Features add NonNullish variations for core contracts (#3) (93ae61d) add optional message to unreachable (44d3fb0) initial commit (2b4a3c6) remove useIf and improve error (#5) (c4ceaf3) use IllegalStateError instead of AssertionError (cc16ac3) Bug Fixes adjust meaning of asserts (32e4c67) split error declarations and fix implementation (e0daabb) use AssertionError for unreachable (ef6a023)