This one is not implemented yet. Is in plans though.
casts[A, B] and
casts[B, C] are defined, they will be applied to a value sequentially to deduce a
casts[A, C] conversion.
import typecasts c = typecasts.Typecasts() c[int, str] = str c[str, bytes] = str.encode assert c[int, bytes](5) == b'5'