refactor: drop explicit TypeAlias annotation from generated literals

`X = Literal[...]` is already recognized as a type alias by every Python
type checker, so the `: TypeAlias` annotation adds noise without adding
any semantic value. Drop it from the postprocess-generated aliases and
from the hand-maintained `TerminalActorJobStatus`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: vdusek

scripts/postprocess_generated_models.py

@@ -4,12 +4,12 @@
 - Fix discriminator field names that use camelCase instead of snake_case (known issue with
   discriminators on schemas referenced from array items).
 - Deduplicate the inlined `Type(StrEnum)` that comes from ErrorResponse.yaml; rewire to `ErrorType`.
-- Rewrite every `class X(StrEnum)` as `X: TypeAlias = Literal[...]` so downstream code can pass
-  plain strings (and reuse the named alias in resource-client signatures) instead of enum members.
+- Rewrite every `class X(StrEnum)` as `X = Literal[...]` so downstream code can pass plain strings
+  (and reuse the named alias in resource-client signatures) instead of enum members.
 - Convert camelCase string values in each literal alias to snake_case (Pythonic), and emit a
   `_<NAME>_WIRE_VALUES` mapping the Python value back to the original camelCase form so the
   resource clients can still produce the exact string the API expects on the wire.
-- Move the resulting `TypeAlias = Literal[...]` definitions into `_literals_generated.py`, leaving
+- Move the resulting `X = Literal[...]` definitions into `_literals_generated.py`, leaving
   `_models_generated.py` importing them — so consumers can depend on a dedicated literals module
   without pulling in every Pydantic model.
 - Add `@docs_group('Models')` to every model class (plus the required import).
@@ -107,7 +107,7 @@ def deduplicate_error_type_enum(content: str) -> str:
 
 
 def convert_enums_to_literals(content: str) -> str:
-    """Rewrite every `class X(StrEnum): ...` into an `X: TypeAlias = Literal[...]` alias.
+    """Rewrite every `class X(StrEnum): ...` into an `X = Literal[...]` alias.
 
     Each member assignment (`NAME = 'value'`) contributes its string value to the literal in
     declaration order. The class docstring, if present, is preserved as a trailing bare-string
@@ -139,7 +139,7 @@ def convert_enums_to_literals(content: str) -> str:
         ]
         docstring = ast.get_docstring(node)
 
-        new_lines: list[str] = [f'{node.name}: TypeAlias = Literal[']
+        new_lines: list[str] = [f'{node.name} = Literal[']
         new_lines.extend(f'    {v!r},' for v in values)
         new_lines.append(']')
         if docstring is not None:
@@ -160,15 +160,15 @@ def convert_enums_to_literals(content: str) -> str:
     for start, end, new in sorted(replacements, key=lambda r: r[0], reverse=True):
         lines[start:end] = new
 
-    return _ensure_typing_import(_collapse_blank_lines('\n'.join(lines)), 'TypeAlias')
+    return _collapse_blank_lines('\n'.join(lines))
 
 
 LITERALS_FILE_HEADER = """\
 # generated by postprocess_generated_models
 
 from __future__ import annotations
 
-from typing import Literal, TypeAlias
+from typing import Literal
 
 
 """
@@ -182,12 +182,11 @@ def _camel_to_snake(value: str) -> str:
 
 
 def _is_literal_alias(node: ast.stmt) -> bool:
-    """Return True if `node` is a top-level `Name: TypeAlias = Literal[...]` statement."""
+    """Return True if `node` is a top-level `Name = Literal[...]` statement."""
     return (
-        isinstance(node, ast.AnnAssign)
-        and isinstance(node.target, ast.Name)
-        and isinstance(node.annotation, ast.Name)
-        and node.annotation.id == 'TypeAlias'
+        isinstance(node, ast.Assign)
+        and len(node.targets) == 1
+        and isinstance(node.targets[0], ast.Name)
         and isinstance(node.value, ast.Subscript)
         and isinstance(node.value.value, ast.Name)
         and node.value.value.id == 'Literal'
@@ -197,9 +196,9 @@ def _is_literal_alias(node: ast.stmt) -> bool:
 def snake_case_camelcase_literal_values(content: str) -> str:
     """Rewrite camelCase string values in `Literal[...]` aliases into snake_case.
 
-    Scans each `Name: TypeAlias = Literal[...]` block and, for any value matching the camelCase
-    pattern (lowercase-first followed by an uppercase letter), converts it to snake_case. For each
-    alias that had at least one conversion, emits a `_<NAME>_WIRE_VALUES: dict[<NAME>, str] = ...`
+    Scans each `Name = Literal[...]` block and, for any value matching the camelCase pattern
+    (lowercase-first followed by an uppercase letter), converts it to snake_case. For each alias
+    that had at least one conversion, emits a `_<NAME>_WIRE_VALUES: dict[<NAME>, str] = ...`
     mapping right after the alias so consumers can translate back to the API wire format.
 
     SCREAMING_SNAKE_CASE, dotted, hyphenated, and HTTP-method values pass through unchanged.
@@ -249,7 +248,7 @@ def snake_case_camelcase_literal_values(content: str) -> str:
 
 
 def split_literals_to_file(content: str) -> tuple[str, str]:
-    """Move every top-level `Name: TypeAlias = Literal[...]` block into a separate literals module.
+    """Move every top-level `Name = Literal[...]` block into a separate literals module.
 
     Walks the top-level AST, collects each literal alias plus its trailing bare-string docstring,
     deletes them from `_models_generated.py`, and rebuilds `_literals_generated.py` from the blocks
@@ -370,7 +369,7 @@ def _extract_top_level_symbols(tree: ast.Module) -> list[tuple[str, ast.stmt, in
 
     If a top-level string expression immediately follows a symbol, it is absorbed into that
     symbol's `end_line` so they get pruned together (datamodel-codegen emits the schema description
-    for TypeAlias statements as a bare string right after the alias).
+    for type-alias statements as a bare string right after the alias).
     """
     symbols: list[tuple[str, ast.stmt, int]] = []
     body = tree.body
@@ -382,6 +381,8 @@ def _extract_top_level_symbols(tree: ast.Module) -> list[tuple[str, ast.stmt, in
             name = node.name
         elif isinstance(node, ast.AnnAssign) and isinstance(node.target, ast.Name):
             name = node.target.id
+        elif isinstance(node, ast.Assign) and len(node.targets) == 1 and isinstance(node.targets[0], ast.Name):
+            name = node.targets[0].id
 
         if name is not None:
             assert node.end_lineno is not None  # noqa: S101

src/apify_client/_literals.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from datetime import timedelta
-from typing import Literal, TypeAlias
+from typing import Literal
 
 from apify_client._models import WebhookRepresentation
 from apify_client._models_generated import WebhookCreate
@@ -19,7 +19,7 @@
 `condition`) are ignored at runtime.
 """
 
-TerminalActorJobStatus: TypeAlias = Literal['SUCCEEDED', 'FAILED', 'TIMED-OUT', 'ABORTED']
+TerminalActorJobStatus = Literal['SUCCEEDED', 'FAILED', 'TIMED-OUT', 'ABORTED']
 """Subset of `ActorJobStatus` values that indicate the job has finished and will not change again."""
 
 Timeout = timedelta | Literal['no_timeout', 'short', 'medium', 'long']

src/apify_client/_literals_generated.py

@@ -2,9 +2,9 @@
 
 from __future__ import annotations
 
-from typing import Literal, TypeAlias
+from typing import Literal
 
-ActorJobStatus: TypeAlias = Literal[
+ActorJobStatus = Literal[
     'READY',
     'RUNNING',
     'SUCCEEDED',
@@ -17,14 +17,14 @@
 """Status of an Actor job (run or build)."""
 
 
-ActorPermissionLevel: TypeAlias = Literal[
+ActorPermissionLevel = Literal[
     'LIMITED_PERMISSIONS',
     'FULL_PERMISSIONS',
 ]
 """Determines permissions that the Actor requires to run. For more information, see the [Actor permissions documentation](https://docs.apify.com/platform/actors/development/permissions)."""
 
 
-ErrorType: TypeAlias = Literal[
+ErrorType = Literal[
     '3d-secure-auth-failed',
     'access-right-already-exists',
     'action-not-found',
@@ -418,7 +418,7 @@
 """Machine-processable error type identifier."""
 
 
-GeneralAccess: TypeAlias = Literal[
+GeneralAccess = Literal[
     'ANYONE_WITH_ID_CAN_READ',
     'ANYONE_WITH_NAME_CAN_READ',
     'FOLLOW_USER_SETTING',
@@ -427,7 +427,7 @@
 """Defines the general access level for the resource."""
 
 
-HttpMethod: TypeAlias = Literal[
+HttpMethod = Literal[
     'GET',
     'HEAD',
     'POST',
@@ -440,7 +440,7 @@
 ]
 
 
-RunOrigin: TypeAlias = Literal[
+RunOrigin = Literal[
     'DEVELOPMENT',
     'WEB',
     'API',
@@ -453,13 +453,13 @@
 ]
 
 
-SourceCodeFileFormat: TypeAlias = Literal[
+SourceCodeFileFormat = Literal[
     'BASE64',
     'TEXT',
 ]
 
 
-StorageOwnership: TypeAlias = Literal[
+StorageOwnership = Literal[
     'owned_by_me',
     'shared_with_me',
 ]
@@ -471,23 +471,23 @@
 """Maps snake_case `StorageOwnership` values to the camelCase form expected on the API wire."""
 
 
-VersionSourceType: TypeAlias = Literal[
+VersionSourceType = Literal[
     'SOURCE_FILES',
     'GIT_REPO',
     'TARBALL',
     'GITHUB_GIST',
 ]
 
 
-WebhookDispatchStatus: TypeAlias = Literal[
+WebhookDispatchStatus = Literal[
     'ACTIVE',
     'SUCCEEDED',
     'FAILED',
 ]
 """Status of the webhook dispatch indicating whether the HTTP request was successful."""
 
 
-WebhookEventType: TypeAlias = Literal[
+WebhookEventType = Literal[
     'ACTOR.BUILD.ABORTED',
     'ACTOR.BUILD.CREATED',
     'ACTOR.BUILD.FAILED',