Hi ​@ayush_gupta_oak thanks for your post. It looks like in that documentation that this feature is not yet available to all customers and users yet. I don't have a date, but looking at the docs it says the following:

Note: This feature is covered by Pre-GA Offerings Terms of the Google Security Operations Service Specific Terms. Pre-GA features might have limited support, and changes to pre-GA features might not be compatible with other pre-GA versions. For more information, see the Google SecOps Technical Support Service guidelines and the Google SecOps Service Specific Terms.

Note: This feature is not available to all customers in all regions.