[Python] Adding Extra Title on CSV use to_csv pandas Python [duplicate]

I have a json and already converted into csv using to_csv pandas function with the header, However I want to add extra string to give extra information of the csv.

data = [
{
"Attributes": "dejje",
"Name": "Plate",
"additionalAttributes6": "",
"Nuber": "",
"additionalAttributes8": "",
"summaryDescription": "",
"Discount": "",
"Groups": "",
"taxInclusive": "",
"additionalAttributes7": ""

}
]


The below code convert it to CSV

flatt_data = pd.json_normalize(data, max_level=1)
flatt_data.to_csv('output.csv',mode='a',index=False, header=True, encoding=None)


Expected Result is highlighted header



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