Python get week starting day from yearweek

During investigation I combined some similar approaches with python docs regading datetime, so leaving my proposal here that I run with for any bypassers:

# python3.7

import datetime

def get_week_start_date(yearweek: str) -> datetime:
    """
    Return date of starting the week (Monday)
    i.e: 201944 returns datetime.datetime(2019, 11, 4, 0, 0)

    %G -> ISO 8601 year with century representing the year that contains the greater part of the ISO week (%V).
    %u -> ISO 8601 weekday as a decimal number where 1 is Monday.
    %V -> ISO 8601 week as a decimal number with Monday as the first day of the week. Week 01 is the week containing Jan 4.

    Arguments:
        yearweek {str} -- year to be calculated

    Returns:
        datetime -- Date of starting the week in passed year, week
    """
    return datetime.datetime.strptime(f"{yearweek}-1", "%G%V-%u")