[Python] Request to create a note in Google Keep returns invalid argument

I'm trying to create notes in Google Keep using API, here is the python script:

import sys
from google.oauth2.service_account import Credentials
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError

# Define the required scopes for Google Sheets and Keep
SCOPES = [
'https://www.googleapis.com/auth/keep',
]

# Path to your service account JSON key file
SERVICE_ACCOUNT_FILE = 'service_file.json' # Replace with your file path

def authenticate():
"""Authenticates with Google Sheets and Keep using a service account."""
try:
creds = Credentials.from_service_account_file(
SERVICE_ACCOUNT_FILE, scopes=SCOPES
)
return creds
except Exception as e:
print(f"Error during authentication: {e}")
return None

def create_keep_note(creds):
"""Creates a note in Google Keep.

Args:
creds: The authenticated credentials.
"""
try:
service = build('keep', 'v1', credentials=creds)
note = {
"title": "title",
"body": {
"text": {
"text": "body"
}
}
}
service.notes().create(body=note).execute()
print(f"Note '{title}' created in Google Keep.")
except HttpError as e:
print(f"Error creating Keep note: {e}")
except Exception as e:
print(f"An unexpected error occurred: {e}")

if __name__ == '__main__':
creds = authenticate()
if not creds:
sys.exit("Authentication failed. Exiting.")

create_keep_note(creds)
print("Completed processing.") #Added to confirm completion


but I'm getting strange error:

Error creating Keep note: <HttpError 400 when requesting https://keep.googleapis.com/v1/notes?alt=json returned "Request contains an invalid argument.". Details: "Request contains an invalid argument.">
​

I'm following Google Keep API so not sure what's wrong with my request.

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