<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def copy_session(session: requests.Session) -> requests.Session: """Duplicates a requests.Session."""

    new = requests.Session()
    new.cookies = requests.utils.cookiejar_from_dict(requests.utils.dict_from_cookiejar(session.cookies))
    new.headers = session.headers.copy()
    return new