def METHOD_NAME(refresh=False):
    """
    Returns current list of proxies to sample from (contents of PROXY_LIST).
    Use `refresh=True` to reload proxy list.
    """
    global PROXY_LIST
    if len(PROXY_LIST) == 0 or refresh:
        # This is either the first run or force-refresh of the list is requested
        if os.getenv("PROXY_LIST", None):
            proxy_list = load_env_proxies()  # (re)load ;-spearated list from ENV
        else:
            proxy_list = get_proxyscape_proxies()
        broken_proxy_list = load_broken_proxies_cache()
        for proxy in proxy_list:
            if proxy not in broken_proxy_list:
                PROXY_LIST.append(proxy)
    return PROXY_LIST