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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def request_permission(cls, permissions):
 """ Requests permission and returns an future result that returns a boolean indicating if all the given permission were granted or denied. """

        app = AndroidApplication.instance()
        f = app.create_future()

        def on_result(perms):
            allowed = True
            for p in permissions:
                allowed = allowed and perms.get(p, False)
            f.set_result(allowed)

        app.request_permissions(permissions).then(on_result)

        return f