Whether the automaton is codeterministic (its transposition is deterministic).
Precondition:
See also:
import vcsn
%%automaton -s a
context = "lal_char(ab), b"
$ -> 0
0 -> 1 a
0 -> 2 b
1 -> 3 b
2 -> 3 b
3 -> $
a.is_codeterministic()
a.transpose().is_deterministic()