Hits the github API for all closed issues after the given date, returns the data.

def query_all_issues(after):
    """Hits the github API for all closed issues after the given date, returns the data."""
    page = count(1)
    data = []
    while True:
        page_data = query_issues(next(page), after)
        if not page_data:
            break
        data.extend(page_data)
    return data