Unable to update an existing prompt in the vertex ai prompt library using python SDK.

[subbu4github]

I am using the following command to fetch the existing prompt from the library

existing_prompt = client.prompts.get(prompt_id="12356644445433333")

I am using the below command to update its content

existing_prompt.prompt_data = types.PromptData(
contents=[
genai_types.Content(
parts=[genai_types.Part(text=content)]
)
],
model=MODEL
)

After the above modification I verified that prompt id is intact by using the following command

print(f"After modification {existing_prompt.prompt_id}")

I used the following command to create the version for the prompt.

version = client.prompts.create_version(prompt=existing_prompt) #since prompt id is deprecated, I am not passing it.

Instead of updating the existing prompt, its creating a newer prompt with the updated content. How to fix this.

The following packages are utilized

import vertexai
from google.genai import types as genai_types
from vertexai import types
from vertexai.preview.prompts import Prompt

-- Subbu S.