def env(self, variable, value, escape=True):
        return nested(* [ h.host_context.env(variable, value, escape=escape) for h in self._all ])
@param args: Arguments given by Flowplayer
dataset/ETHPy150Open jonathanslenders/python-deployer/deployer/host_container.py/HostsContainer.env--crossover with--dataset/ETHPy150Open pyjs/pyjs/pyjswaddons/FlowPlayer.py/Player.fireEvent