typing (#330)

Author: MarcoGorelli

spec/API_specification/dataframe_api/typing.py

@@ -69,6 +69,9 @@ class NullType:
     null: NullType
 
     class Datetime:
+        time_unit: Literal['ms', 'us']
+        time_zone: str | None
+
         def __init__(  # noqa: ANN204
             self,
             time_unit: Literal["ms", "us"],
@@ -77,6 +80,8 @@ def __init__(  # noqa: ANN204
             ...
 
     class Duration:
+        time_unit: Literal['ms', 'us']
+
         def __init__(  # noqa: ANN204
             self,
             time_unit: Literal["ms", "us"],