Use "impl-detail" directive where applicable.

1 files changed, 6 insertions, 6 deletions

diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index e1b0ada..6481894 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -663,13 +663,13 @@ slots for which no default value is specified, a :exc:`TypeError` exception is
 raised.  Otherwise, the list of filled slots is used as the argument list for
 the call.
 
-.. note::
+.. impl-detail::
 
-   An implementation may provide built-in functions whose positional parameters do
-   not have names, even if they are 'named' for the purpose of documentation, and
-   which therefore cannot be supplied by keyword.  In CPython, this is the case for
-   functions implemented in C that use :cfunc:`PyArg_ParseTuple` to parse their
-   arguments.
+   An implementation may provide built-in functions whose positional parameters
+   do not have names, even if they are 'named' for the purpose of documentation,
+   and which therefore cannot be supplied by keyword.  In CPython, this is the
+   case for functions implemented in C that use :cfunc:`PyArg_ParseTuple` to
+   parse their arguments.
 
 If there are more positional arguments than there are formal parameter slots, a
 :exc:`TypeError` exception is raised, unless a formal parameter using the syntax