def build_prompt(self, log_partition: dict) -> list:
    """
    Build the prompt.
    :param log_partition: The log partition.
    return: The prompt.
    """
    experience_prompter = ExperiencePrompter(
        self.is_visual,
        self.prompt_template,
        self.example_prompt_template,
        self.api_prompt_template,
    )
    experience_system_prompt = experience_prompter.system_prompt_construction()
    experience_user_prompt = experience_prompter.user_content_construction(
        log_partition
    )
    experience_prompt = experience_prompter.prompt_construction(
        experience_system_prompt, experience_user_prompt
    )

    return experience_prompt

@staticmethod
def create_or_update_vector_db(summaries: list, db_path: str):
    """
    Create or update the vector database.
    :param summaries: The summaries.
    :param db_path: The path of the vector database.
    """

    document_list = []

    for summary in summaries:
        request = summary["request"]
        document_list.append(Document(page_content=request, metadata=summary))

    db = FAISS.from_documents(document_list, get_hugginface_embedding())

    # Check if the db exists, if not, create a new one.
    if os.path.exists(db_path):
        prev_db = FAISS.load_local(
            db_path,
            get_hugginface_embedding(),
            allow_dangerous_deserialization=True,
        )
        db.merge_from(prev_db)

    db.save_local(db_path)

    print(f"Updated vector DB successfully: {db_path}")

@staticmethod
def create_or_update_yaml(summaries: list, yaml_path: str):
    """
    Create or update the YAML file.

    :param summaries: The summaries.
    :param yaml_path: The path of the YAML file.
    """

    # Check if the file exists, if not, create a new one
    if not os.path.exists(yaml_path):
        with open(yaml_path, "w"):
            pass
        print(f"Created new YAML file: {yaml_path}")

    # Read existing data from the YAML file
    with open(yaml_path, "r") as file:
        existing_data = yaml.safe_load(file)

    # Initialize index and existing_data if file is empty
    index = len(existing_data) if existing_data else 0
    existing_data = existing_data or {}

    # Update data with new summaries
    for i, summary in enumerate(summaries):
        example = {f"example{index + i}": summary}
        existing_data.update(example)

    # Write updated data back to the YAML file
    with open(yaml_path, "w") as file:
        yaml.safe_dump(
            existing_data, file, default_flow_style=False, sort_keys=False
        )

    print(f"Updated existing YAML file successfully: {yaml_path}")

def get_summary(self, prompt_message: list) -> Tuple[dict, float]:
    """
    Get the summary.
    :param prompt_message: The prompt message.
    return: The summary and the cost.
    """

    # Get the completion for the prompt message
    response_string, cost = get_completion(
        prompt_message, "APPAGENT", use_backup_engine=True
    )
    try:
        response_json = json_parser(response_string)
    except:
        response_json = None

    # Restructure the response
    if response_json:
        summary = dict()
        summary["example"] = {}
        for key in [
            "Observation",
            "Thought",
            "ControlLabel",
            "ControlText",
            "Function",
            "Args",
            "Status",
            "Plan",
            "Comment",
        ]:
            summary["example"][key] = response_json.get(key, "")
        summary["Tips"] = response_json.get("Tips", "")

    return summary, cost

def get_summary_list(self, logs: list) -> Tuple[list, float]:
    """
    Get the summary list.
    :param logs: The logs.
    return: The summary list and the total cost.
    """
    summaries = []
    total_cost = 0.0
    for log_partition in logs:
        prompt = self.build_prompt(log_partition)
        summary, cost = self.get_summary(prompt)
        summary["request"] = log_partition.get("subtask")
        summary["Sub-task"] = log_partition.get("subtask")
        summary["app_list"] = [log_partition.get("application")]
        summaries.append(summary)
        total_cost += cost

    return summaries, total_cost

@staticmethod
def read_logs(log_path: str) -> list:
    """
    Read the log.
    :param log_path: The path of the log file.
    """
    replay_loader = ExperienceLogLoader(log_path)
    return replay_loader.subtask_partition

def get_indexer(self, db_path: str):
    """
    Create an experience indexer.
    :param db_path: The path to the database.
    """

    try:
        db = FAISS.load_local(
            db_path,
            get_hugginface_embedding(),
            allow_dangerous_deserialization=True,
        )
        return db
    except Exception as e:
        print_with_color(
            "Warning: Failed to load experience indexer from {path}, error: {error}.".format(
                path=db_path, error=e
            ),
            "yellow",
        )
        return None