sketch of new type-annotation-based interface

[glyph]

Fixes #145

obviously needs tests and perhaps some more thought (in particular… how would feedback state-changes work here?) but I think this might be cleaner than the methodical machine

[codecov-commenter]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (2da0af1) 91.82% compared to head (9466e8f) 94.18%.

Files	Patch %	Lines
automat/_typical.py	99.19%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##            trunk     #137      +/-   ##
==========================================
+ Coverage   91.82%   94.18%   +2.36%     
==========================================
  Files          11       13       +2     
  Lines        1260     1806     +546     
==========================================
+ Hits         1157     1701     +544     
- Misses        103      105       +2     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.