Please explain this django admin code

I'll be really grateful if someone can take the time to explain these lines of code. Its from contrib.admin.options

        def wrap(view):
            def wrapper(*args, **kwargs):
                return self.admin_site.admin_view(view)(*args, **kwargs)    # This is the brain twisting line
            return update_wrapper(wrapper, view)

The syntax foo.bar()(*osama **obama) is just blowing fuses in my brain and then from the code above, I can't even find where admin_view is defined.

Thanks for your time.

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