random: Use conditional expressions
Add type checker test cases
Add failing MI test case (skipped)
Add MI test case
Add and update test cases
Add failing MI test cases
Update comment
Check compatibility of inherited attributes in MI
Add multiple inheritance test cases
Add multiple inheritance test cases
Fix multiple inheritance and __init__
Minor refactoring
Fix to multiple inheritance + abstract methods
Semantic analysis of read-only properties
Add docstrings
Add comment
Prepare for type checking of read-only properties
Add property to builtins

It's only supported as a decorator.
tempfile: Use properties
Add test case