not-context-manager:23:0:24:8::Context manager 'NotAManager' doesn't implement __enter__ and __exit__.:UNDEFINED
not-context-manager:37:0:38:8::Context manager 'dec' doesn't implement __enter__ and __exit__.:UNDEFINED
not-context-manager:55:0:56:8::Context manager 'int' doesn't implement __enter__ and __exit__.:UNDEFINED
not-context-manager:90:0:91:8::Context manager 'int' doesn't implement __enter__ and __exit__.:UNDEFINED
not-context-manager:134:0:135:8::Context manager 'generator' doesn't implement __enter__ and __exit__.:UNDEFINED
not-context-manager:137:0:138:8::Context manager 'slice' doesn't implement __enter__ and __exit__.:UNDEFINED
