diff --git a/stubs/xmltodict/@tests/test_cases/check_postprocessor.py b/stubs/xmltodict/@tests/test_cases/check_postprocessor.py
new file mode 100644
index 000000000000..805a7aae7d14
--- /dev/null
+++ b/stubs/xmltodict/@tests/test_cases/check_postprocessor.py
@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+import xmltodict
+from xmltodict import _AttrDict, _AttrValue
+
+
+# XML post-processor that eats all `b` elements
+def b_eater(path: list[tuple[str, _AttrDict | None]], key: str, value: _AttrValue) -> tuple[str, _AttrValue] | None:
+    if key == "b":
+        return None  # discard the node entirely
+    return key, value
+
+
+xmltodict.parse("<a><b/><c><b/></c></a>", postprocessor=b_eater)
+# returns a tree of just <a><c/></a>
diff --git a/stubs/xmltodict/xmltodict.pyi b/stubs/xmltodict/xmltodict.pyi
index d0e1237d3360..50ba4b6f4fbe 100644
--- a/stubs/xmltodict/xmltodict.pyi
+++ b/stubs/xmltodict/xmltodict.pyi
@@ -20,7 +20,7 @@ class _DictSAXHandler:
     cdata_key: str
     force_cdata: bool | Container[str] | Callable[[tuple[str, _AttrDict | None], str, str], bool]
     cdata_separator: str
-    postprocessor: Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue]] | None
+    postprocessor: Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue] | None] | None
     dict_constructor: type
     strip_whitespace: bool
     namespace_separator: str
@@ -37,7 +37,9 @@ class _DictSAXHandler:
         cdata_key: str = "#text",
         force_cdata: bool | Container[str] | Callable[[tuple[str, _AttrDict | None], str, str], bool] = False,
         cdata_separator: str = "",
-        postprocessor: Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue]] | None = None,
+        postprocessor: (
+            Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue] | None] | None
+        ) = None,
         dict_constructor: type = ...,
         strip_whitespace: bool = True,
         namespace_separator: str = ":",
@@ -68,7 +70,7 @@ def parse(
     cdata_key: str = "#text",
     force_cdata: bool | Container[str] | Callable[[tuple[str, _AttrDict | None], str, str], bool] = False,
     cdata_separator: str = "",
-    postprocessor: Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue]] | None = None,
+    postprocessor: Callable[[list[tuple[str, _AttrDict | None]], str, _AttrValue], tuple[str, _AttrValue] | None] | None = None,
     dict_constructor: type = ...,
     strip_whitespace: bool = True,
     namespaces: Mapping[str, str | None] | None = None,