Add defaults for third-party stubs A-D (#9952)

stubs/chevron/chevron/main.pyi

@@ -1,5 +1,5 @@
 from _typeshed import FileDescriptorOrPath
 from typing import Any
 
-def main(template: FileDescriptorOrPath, data: FileDescriptorOrPath | None = ..., **kwargs: Any) -> str: ...
+def main(template: FileDescriptorOrPath, data: FileDescriptorOrPath | None = None, **kwargs: Any) -> str: ...
 def cli_main() -> None: ...

stubs/chevron/chevron/renderer.pyi

@@ -8,14 +8,14 @@ python3: Literal[True]
 
 def unicode(x: str, y: str) -> str: ...
 def render(
-    template: SupportsRead[str] | str | Sequence[tuple[str, str]] = ...,
-    data: dict[str, Any] = ...,
-    partials_path: StrPath | None = ...,
-    partials_ext: str = ...,
-    partials_dict: dict[str, str] = ...,
-    padding: str = ...,
-    def_ldel: str | None = ...,
-    def_rdel: str | None = ...,
-    scopes: MutableSequence[int] | None = ...,
-    warn: bool = ...,
+    template: SupportsRead[str] | str | Sequence[tuple[str, str]] = "",
+    data: dict[str, Any] = {},
+    partials_path: StrPath | None = ".",
+    partials_ext: str = "mustache",
+    partials_dict: dict[str, str] = {},
+    padding: str = "",
+    def_ldel: str | None = "{{",
+    def_rdel: str | None = "}}",
+    scopes: MutableSequence[int] | None = None,
+    warn: bool = False,
 ) -> str: ...

stubs/chevron/chevron/tokenizer.pyi

@@ -7,5 +7,5 @@ def l_sa_check(template: str, literal: str, is_standalone: bool) -> bool | None:
 def r_sa_check(template: str, tag_type: str, is_standalone: bool) -> bool: ...  # undocumented
 def parse_tag(template: str, l_del: str | None, r_del: str | None) -> tuple[tuple[str, str], str]: ...  # undocumented
 def tokenize(
-    template: str, def_ldel: str | None = ..., def_rdel: str | None = ...
+    template: str, def_ldel: str | None = "{{", def_rdel: str | None = "}}"
 ) -> Iterator[tuple[str, str]]: ...  # undocumented