How to get displayed column name?

[KevinYobeth]

I have some column that use hideIf when criteria aren't met. I'm making an bulk export action which pass the selectedRowsQuery to the export class. I want to give it a heading, but I need to define the heading which is not possible since the header will be dynamic.

The question, Is there a way to get current visible column title and pass it to the export class? Thanks!