def METHOD_NAME():
    """
    Before: set HTTPS_PROXY, HTTP_PROXY and NO_PROXY
    After: unset HTTPS_PROXY, HTTP_PROXY and NO_PROXY
    """
    os.environ[constants.ENV_HTTPS_PROXY] = "https://192.168.0.5:3128"
    os.environ[constants.ENV_HTTP_PROXY] = "http://192.168.0.5:3128"
    os.environ[constants.ENV_NO_PROXY] = "subdomain.example.com,192.168.1.5,.example.com"
    yield
    os.environ[constants.ENV_HTTPS_PROXY] = ""
    os.environ[constants.ENV_HTTP_PROXY] = ""
    os.environ[constants.ENV_NO_PROXY] = ""