[Python] Python typing. TypedDict. How to turn a non-required key into a required one?

The code below defines a TypedDict with optional keys. The if statement in the middle raises an exception if a certain key is absent, which means that the next lines will be executed only if that key is present. It seems Pylance can't figure out this logic automatically. How am I supposed to handle this? Reassign a new typing to the same Dict somehow?

output_dict_type = TypedDict(
'some description',
{
'id': str
'name': str
},
total=False
)
my_dictutput_dict_type = {
'id': 'foo'
}
if not my_dict.get('name'):
raise Exception('name is required')

if my_dict['name'] == 'John': # type error: "name" is not a required key...
do_stuff()

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