[mimetypes] update init functions to accept Iterables of file paths (#15079)

stdlib/mimetypes.pyi

@@ -1,6 +1,6 @@
 import sys
 from _typeshed import StrPath
-from collections.abc import Sequence
+from collections.abc import Iterable
 from typing import IO
 
 __all__ = [
@@ -25,7 +25,7 @@ if sys.version_info >= (3, 13):
 def guess_type(url: StrPath, strict: bool = True) -> tuple[str | None, str | None]: ...
 def guess_all_extensions(type: str, strict: bool = True) -> list[str]: ...
 def guess_extension(type: str, strict: bool = True) -> str | None: ...
-def init(files: Sequence[StrPath] | None = None) -> None: ...
+def init(files: Iterable[StrPath] | None = None) -> None: ...
 def read_mime_types(file: StrPath) -> dict[str, str] | None: ...
 def add_type(type: str, ext: str, strict: bool = True) -> None: ...
 
@@ -44,7 +44,7 @@ class MimeTypes:
     encodings_map: dict[str, str]
     types_map: tuple[dict[str, str], dict[str, str]]
     types_map_inv: tuple[dict[str, str], dict[str, str]]
-    def __init__(self, filenames: tuple[StrPath, ...] = (), strict: bool = True) -> None: ...
+    def __init__(self, filenames: Iterable[StrPath] = (), strict: bool = True) -> None: ...
     def add_type(self, type: str, ext: str, strict: bool = True) -> None: ...
     def guess_extension(self, type: str, strict: bool = True) -> str | None: ...
     def guess_type(self, url: StrPath, strict: bool = True) -> tuple[str | None, str | None]: ...