doc fixing of the cpython fixes#84116

Author: Krishna-web-hub

Doc/library/argparse.rst

@@ -1672,10 +1672,24 @@ Sub-commands
    :class:`ArgumentParser` supports the creation of such subcommands with the
    :meth:`!add_subparsers` method.  The :meth:`!add_subparsers` method is normally
    called with no arguments and returns a special action object.  This object
-   has a single method, :meth:`~_SubParsersAction.add_parser`, which takes a
-   command name and any :class:`!ArgumentParser` constructor arguments, and
-   returns an :class:`!ArgumentParser` object that can be modified as usual.
-
+   has a single method, :meth:`~_SubParsersAction.add_parser`:
+   .. method:: _SubParsersAction.add_parser(name, *, help=None, aliases=None, **kwargs)
+
+   Creates and returns a new :class:`!ArgumentParser` object for the
+   subcommand *name*.
+
+   :param name: The name of the sub-command.
+   :param help: A short description for this sub-command. If provided,
+                it will be listed next to the command in the main
+                parser's help message (e.g., ``PROG --help``).
+   :param aliases: A list or sequence of strings that can be used as
+                   alternative names for this sub-command (e.g., ``aliases=['r']``
+                   for a ``'run'`` command).
+   :param kwargs: All other keyword arguments are passed directly to the
+                  :class:`!ArgumentParser` constructor.
+
+   This returned :class:`!ArgumentParser` object can be modified as usual.
+ 
    Description of parameters:
 
    * *title* - title for the sub-parser group in help output; by default