def METHOD_NAME(body: str) -> List[str]:
    matches = re.findall(r"(cc( @[-A-Za-z0-9]+)+)", body, flags=re.MULTILINE)
    matches = [full for full, last in matches]
    reviewers = []
    for match in matches:
        if match.startswith("cc "):
            match = match.replace("cc ", "")
        users = [x.strip() for x in match.split("@")]
        reviewers += users
    reviewers = set(x for x in reviewers if x != "")
    return list(reviewers)