v0.4.3

Fixed

• dx.TaggedUnion variant discriminator now accepts every spelling of Literal[...]: bare Literal["x"], qualified typing.Literal["x"], and aliased imports (from typing import Literal as L). Under from __future__ import annotations the discriminator annotation arrives as a string; the variant check now evaluates that string in the class's defining module before applying the get_origin(...) is Literal check, instead of pattern-matching on the source text. Useful when the variant Model has a class also named Literal (e.g. an AST module exporting Literal, Variable, BinaryOp from a discriminator-tagged ASTNode union root) so the user can keep the public API name. (#18)

Full changelog: https://github.com/panproto/didactic/blob/main/CHANGELOG.md