[Volv-G]

What

@task(unwrap=...) now accepts artifact values. A parameter annotated dict[str, components.InputPath(T)] expands into one inputPath component input per call-site key (<param>__<key>, type T). The generated runtime wrapper re-assembles the dict with each key's local artifact path, so one inline task can consume an arbitrary number of upstream artifacts:

@task(image="python:3.12", unwrap="tables")
def merge_parquets(
    tables: dict[str, components.InputPath("ApacheParquet")],
    merged_path: components.OutputPath("ApacheParquet"),
): ...

merged = merge_parquets.named("merge")(tables={"shop": shop.table, "catalog": catalog.table})

Schema / compatibility

• Artifact unwraps persist "kind": "input_path" on each key and "value_kind": "input_path" on the parameter in local_from_python.unwrapped_inputs, so hydrate regenerates the identical inputPath interface from the sidecar alone.
• Value unwraps omit both fields: their persisted schema and fragment hash are byte-identical to before. Entries without kind are value inputs.
• Artifact inputs always deserialize as str (the path), regardless of T.
• OutputPath dict values are now rejected with a clear error (previously they silently became String value inputs).
• Use builtin dict[...]; typing.Dict rejects non-type arguments such as InputPath(...).

Tests

• Schema shape for value unwraps pinned (incl. a Dict[str, dict] JSON-object case) and for artifact unwraps.
• Untyped InputPath(), OutputPath rejection, unknown persisted kind rejection.
• Generated program end-to-end with real file paths, including two artifact unwraps + one value unwrap with hyphenated keys on one task.
• Compile → sidecar → hydrate round trip asserting inputPath placeholders.

Version bumped to 0.1.33. README documents the new form.