How to close previous browser before another browser is opened in Serenity Screenplay

[happy1610]

Dear,

I'm using Serenity Screenplay for my auto project,
The feature file has scripts likes:

  And AccountA go to admin portal
  And AccountA login with credentials
  And AccountB go to admin portal
  And AccountB login with credentials

2 new browers will be opened, one for AccountA, then another one for AccountB,
I want to close 1st browser which for AccountA before 2nd browser for AccountB is opened.
Is there any way to do that?

Thanks all so much.

[happy1610]

@wakaleo do you have any idea? Thanks in advance