Which of these two class implementations is more pythonic / conventional?

I have two almost identical versions of a class that is used to interact with the zoho sheets api.
It essentially works by allowing you to call zs.context.action or zs.action.context – both are equivalent.

in zs.foo.bar, zs.foo returns an instance of the foo class and bar is a method of foo

Should the call to foo be a method like zs or an attribute like zs2?

zs – using methods:

    zs.select(
        workbook_id="3o8ua1fa990f83cfoobarbaz", 
        worksheet_name="Sheet1"
    )
    zs.list_all().templates()
    zs.template().list_all()
    zs.cell().get(1,1)
    zs.get().cell(1,1)

zs2 – using attributes:

    zs2.select(
        workbook_id="3o8ua1fa990f83cfoobarbaz", 
        worksheet_name="Sheet1"
    )
    zs2.list_all.templates()
    zs2.template.list_all()
    zs2.cell.get(1,1)
    zs2.get.cell(1,1)