Move function to bottom for type annotations

pypdf/generic/_base.py

@@ -220,16 +220,6 @@ def __repr__(self) -> str:
  return "NullObject"
 
 
-def is_null_or_none(x: Any) -> TypeGuard[None|NullObject|IndirectObject]:
- """
- Returns:
- True if x is None or NullObject.
- """
- return x is None or (
- isinstance(x, PdfObject) and isinstance(x.get_object(), NullObject)
- )
-
-
 class BooleanObject(PdfObject):
  def __init__(self, value: Any) -> None:
  self.value = value
@@ -859,3 +849,13 @@ def encode_pdfdocencoding(unicode_string: str) -> bytes:
  -1,
  "does not exist in translation table",
  )
+
+
+def is_null_or_none(x: Any) -> TypeGuard[None | NullObject | IndirectObject]:
+ """
+ Returns:
+ True if x is None or NullObject.
+ """
+ return x is None or (
+ isinstance(x, PdfObject) and isinstance(x.get_object(), NullObject)
+ )