docs: inject AnyValue into attributes namespace via conf.py instead of re-exporting

Signed-off-by: Raajhesh Kannaa Chidambaram <495042+raajheshkannaa@users.noreply.github.com>

Author: raajheshkannaa

docs/conf.py

@@ -26,6 +26,15 @@
 
 settings.configure()
 
+# Provide AnyValue in opentelemetry.attributes module's namespace so the
+# "AnyValue" forward reference in opentelemetry.util.types._ExtendedAttributes
+# resolves when sphinx_autodoc_typehints calls typing.get_type_hints() on
+# BoundedAttributes (whose __globals__ is the attributes module). Docs-only.
+import opentelemetry.attributes  # noqa: E402
+from opentelemetry.util.types import AnyValue as _AnyValue  # noqa: E402
+
+opentelemetry.attributes.AnyValue = _AnyValue
+
 
 source_dirs = [
     os.path.abspath("../opentelemetry-instrumentation/src/"),

opentelemetry-api/src/opentelemetry/attributes/__init__.py

@@ -9,13 +9,6 @@
 
 from opentelemetry.util import types
 
-# Re-exported so the "AnyValue" forward reference in
-# util.types._ExtendedAttributes resolves against this module's globals when
-# sphinx_autodoc_typehints introspects BoundedAttributes.
-from opentelemetry.util.types import AnyValue
-
-__all__ = ["AnyValue", "BoundedAttributes"]
-
 # bytes are accepted as a user supplied value for attributes but
 # decoded to strings internally.
 _VALID_ATTR_VALUE_TYPES = (bool, str, bytes, int, float)