do not expose keyed_ variants of the mappers under arraycontext module

arraycontext/__init__.py

@@ -52,7 +52,6 @@ from .container.traversal import (
         rec_multimap_array_container,
         mapped_over_array_containers,
         multimapped_over_array_containers,
-        keyed_map_array_container, rec_keyed_map_array_container,
         thaw, freeze,
         from_numpy, to_numpy)
 
@@ -84,7 +83,6 @@ __all__ = (
         "rec_map_array_container", "rec_multimap_array_container",
         "mapped_over_array_containers",
         "multimapped_over_array_containers",
-        "keyed_map_array_container", "rec_keyed_map_array_container",
         "thaw", "freeze",
         "from_numpy", "to_numpy",
 

arraycontext/impl/pytato/compile.py

@@ -73,7 +73,7 @@ def _ary_container_key_stringifier(keys: Tuple[Any, ...]) -> str:
     Helper for :meth:`LazilyCompilingFunctionCaller.__call__`. Stringifies an
     array-container's component's key. Goals of this routine:
 
-    * No two different keys have the same stringification
+    * No two different keys should have the same stringification
     * Stringified key must a valid identifier according to :meth:`str.isidentifier`
     * (informal) Shorter identifiers are preferred
     """