How to use the iredis.config.config.version function in iredis

def test_get_server_verison_after_client():
    from iredis.config import config

    Client("127.0.0.1", "6379", None)
    assert config.version.startswith("5.")

    config.version = "Unknown"
    Client("127.0.0.1", "6379", None, get_info=False)
    assert config.version == "Unknown"

def test_get_server_verison_after_client():
    from iredis.config import config

    Client("127.0.0.1", "6379", None)
    assert config.version.startswith("5.")

    config.version = "Unknown"
    Client("127.0.0.1", "6379", None, get_info=False)
    assert config.version == "Unknown"

def test_do_help():
    from iredis.config import config

    client = Client("127.0.0.1", "6379", None)
    config.version = "5.0.0"
    resp = client.do_help("SET")
    assert resp[10] == ("", "1.0.0 (Avaiable on your redis-server: 5.0.0)")
    config.version = "2.0.0"
    resp = client.do_help("cluster", "addslots")
    assert resp[10] == ("", "3.0.0 (Not avaiable on your redis-server: 2.0.0)")

def test_do_help():
    from iredis.config import config

    client = Client("127.0.0.1", "6379", None)
    config.version = "5.0.0"
    resp = client.do_help("SET")
    assert resp[10] == ("", "1.0.0 (Avaiable on your redis-server: 5.0.0)")
    config.version = "2.0.0"
    resp = client.do_help("cluster", "addslots")
    assert resp[10] == ("", "3.0.0 (Not avaiable on your redis-server: 2.0.0)")

def test_get_server_verison_after_client():
    from iredis.config import config

    Client("127.0.0.1", "6379", None)
    assert config.version.startswith("5.")

    config.version = "Unknown"
    Client("127.0.0.1", "6379", None, get_info=False)
    assert config.version == "Unknown"

try:
            doc_file = open(
                project_path / "redis-doc" / "commands" / f"{command_docs_name}.md"
            )
        except FileNotFoundError:
            raise NotRedisCommand(
                f"{command_summary_name} is not a valide Redis command."
            )

        with doc_file as doc_file:
            doc = doc_file.read()
            rendered_detail = markdown.render(doc)
        summary_dict = commands_summary[command_summary_name]

        avaiable_version = summary_dict.get("since", "?")
        server_version = config.version
        # FIXME anything strange with single quotes?
        logger.debug(f"[--version--] '{server_version}'")
        try:
            is_avaiable = StrictVersion(server_version) > StrictVersion(
                avaiable_version
            )
        except Exception as e:
            logger.exception(e)
            is_avaiable = None

        if is_avaiable:
            avaiable_text = f"(Avaiable on your redis-server: {server_version})"
        elif is_avaiable is False:
            avaiable_text = f"(Not avaiable on your redis-server: {server_version})"
        else:
            avaiable_text = ""

def greetings():
    iredis_version = f"iredis  {__version__}"
    if config.no_version_reason:
        reason = f"({config.no_version_reason})"
    else:
        reason = ""

    server_version = f"redis-server  {config.version} {reason}"
    home_page = "Home:   https://iredis.io"
    issues = "Issues: https://iredis.io/issues"
    display = "\n".join([iredis_version, server_version, home_page, issues])
    write_result(display)

def get_server_info(self):
        self.connection.send_command("INFO")
        # safe to decode Redis's INFO response
        info_resp = utils.ensure_str(self.connection.read_response())

        version = re.findall(r"^redis_version:([\d\.]+)\r\n", info_resp, re.MULTILINE)[
            0
        ]
        logger.debug(f"[Redis Version] {version}")
        config.version = version

def render_slowlog(raw, completers=None):
    if config.raw:
        return _render_raw_list(raw)
    fields = ["Slow log id", "Start at", "Running time(ms)", "Command"]
    if StrictVersion(config.version) > StrictVersion("4.0"):
        fields.extend(["Client IP and port", "Client name"])

    rendered = []
    text = _ensure_str(raw)
    index_width = len(str(len(text)))
    for index, slowlog in enumerate(text):
        index_str = f"{index+1:{index_width}}) "
        rendered.append(("", index_str))
        for field, value in zip(fields, slowlog):
            if field == "Command":
                value = " ".join(value)
            if field != "Slow log id":
                display_field = " " * len(index_str) + field
            else:
                display_field = field
            logger.debug(f"field: {field}, value: {value}")