pixijs: Bug: why is there not exist function "getChildByName" in my Container

Current Behavior

I update pixi from 6.4.2 to 7.2.4.Then I found that the “getChildByname” function is invalid. For example: const nodeContainer = new PIXI.Container(); nodeContainer.getChildByName() so I find PIXI Class. There is not exist function “getChildByName” in PIXI.Container

Expected Behavior

Steps to Reproduce

I feel weird.And my English is not very good. I wonder if the description is clear?

Environment

• pixi.js version: e.g. 7.2.4
• Browser & Version: e.g. Chrome 116
• OS & Version: *e.g. macOS Big Sur 11.1 *

Possible Solution

No response

Additional Information

No response