Format SAS DATE

[Racer_x]

Having a issue locating the proper format.

for k, v in ds.items():
                v.label = k.title()
                print(v.dtype )
                if v.dtype == 'object':
                    v.format = '$CHAR20.'
                elif v.dtype == 'datetime64[ns]':
                    v.format = '$DATETIME.'                
                else:
                    v.format = '10.2'

Error:
493   2019-04-02 09:47:44.433262100
Name: dtsub, Length: 494, dtype: datetime64[ns]
object
int64
object
int64
object
object
int64
object
object
int64
object
int64
object
int64
object
object
int64
object
int64
object
int64
object
datetime64[ns]
Traceback (most recent call last):
  File "c:\Users\Test Files\NewXport.py", line 98, in <module>
    v.format = '$DATETIME.'
  File "C:\Users\Local\Programs\Python\Python310\lib\site-packages\pandas\core\generic.py", line 5500, in __setattr__
    return object.__setattr__(self, name, value)
  File "C:\Users\Local\Programs\Python\Python310\lib\site-packages\xport\__init__.py", line 398, in format
    self._format = Format.from_spec(value)
  File "C:\Users\Local\Programs\Python\Python310\lib\site-packages\xport\__init__.py", line 264, in from_spec
    return super().from_spec(spec=spec, justify=justify)
  File "C:\Users\Local\Programs\Python\Python310\lib\site-packages\xport\__init__.py", line 162, in from_spec
    raise ValueError(f'Invalid informat {spec}')
ValueError: Invalid informat $DATETIME.