Nullable DateTime Column in DataFrame Model

[korbcode]

Hello,

I am trying to set up a nullable datetime column in a schema model by defining the class:

class NewSchema(pa.DataFrameModel):
    changedate: pa.typing.Series[Annotated[pd.DatetimeTZDtype, "ns", "UTC"]] = pa.Field(nullable = True)

However, get an error: "SchemaError: non-nullable series 'changedate' contains null values:"

Does anyone know a solution?

Best

[korbcode]

Sorry. Now it works, exactly with the schema definition I posted before.