Python type hinting NDJSON

Question

I would like to use type hinting for my python functions.
One takes Newline Delimited JSON as input and another has NDJSON as output. Is there a specific type hint for JSON or NDJSON?

Or is it just a string? What options do I have here for type hinting?

Example of my "string" looks as follows:

{"Employee": "Sander", "ID": 3}
{"Employee": "Someone else", "ID": 5}

Example of my function:

def get_ndjson(employees_dicts_list) -> NDJSON:
    employee_data = [json.dumps(employee) for employee in employees_dicts_list]
    return "\n".join(employee_data)

Answer 1

From the json.dumps documentation:

Serialize obj to a JSON formatted str using this conversion table.

So your employee_data is a list of str and the returned value is just a str .