What does mean "Weight" in Tasks?

ERPNext Project Management
1

Hello.
What does mean “Weight” in Tasks?
I need story points is it the same?

2

There are multiple ways to track the project progress in ERPNext. One method is the based on task weight. The weight field in the task is to update the same. Please check the project documentation for more details.
https://docs.erpnext.com/docs/v12/user/manual/en/projects/project