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[wastu01]

 def save_data_to_csv(self, data: dict):
        """
        Save the provided data into a CSV file.

        Args:
            data (dict): The data to be saved.
            filename (str): The filename of the CSV file.
        """
        # Convert the dictionary to a DataFrame
        df = pd.DataFrame(data)

        # Check if file exists
        if os.path.isfile(filename):
            # If it exists, append without writing headers
            df.to_csv(filename, mode='a', header=False, index=False)
        else:
            # If it doesn't exist, write the DataFrame with headers
            df.to_csv(filename, index=False)