Add __all__ for modules beginning with 'h' and 'i' (#7327)

stdlib/html/__init__.pyi

@@ -1,4 +1,6 @@
 from typing import AnyStr
 
+__all__ = ["escape", "unescape"]
+
 def escape(s: AnyStr, quote: bool = ...) -> AnyStr: ...
 def unescape(s: AnyStr) -> AnyStr: ...

stdlib/html/entities.pyi

@@ -1,3 +1,5 @@
+__all__ = ["html5", "name2codepoint", "codepoint2name", "entitydefs"]
+
 name2codepoint: dict[str, int]
 html5: dict[str, str]
 codepoint2name: dict[int, str]

stdlib/html/parser.pyi

@@ -1,6 +1,8 @@
 from _markupbase import ParserBase
 from typing import Pattern
 
+__all__ = ["HTMLParser"]
+
 class HTMLParser(ParserBase):
     def __init__(self, *, convert_charrefs: bool = ...) -> None: ...
     def feed(self, data: str) -> None: ...