revert py3.10 style typehinting

Author: asasvari

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

@@ -30,7 +30,7 @@
 
 def _clean_attribute(
     key: str, value: types.AttributeValue, max_len: Optional[int]
-) -> Optional[Union[types.AttributeValue, tuple[str | int | float, ...]]]:
+) -> Optional[Union[types.AttributeValue, tuple[Union[str, int, float], ...]]]:
     """Checks if attribute value is valid and cleans it if required.
 
     The function returns the cleaned value or None if the value is not valid.
@@ -149,10 +149,10 @@ def __init__(
         self.max_value_len = max_value_len
         # OrderedDict is not used until the maxlen is reached for efficiency.
 
-        self._dict: (
-            MutableMapping[str, types.AttributeValue]
-            | OrderedDict[str, types.AttributeValue]
-        ) = {}
+        self._dict: Union[
+            MutableMapping[str, types.AttributeValue],
+            OrderedDict[str, types.AttributeValue],
+        ] = {}
         self._lock = threading.RLock()
         if attributes:
             for key, value in attributes.items():