def create_message(slave, params):
content = {
var.name: var.getter()
for var in slave.vars.values()
if var.causality == pade.fmi.Fmi2Causality.input
}
content.update(params)
message = ACLMessage(ACLMessage.FIPA_REQUEST_PROTOCOL)
message.set_performative(ACLMessage.REQUEST)
message.set_sender(slave.wrapper_aid)
message.add_receiver(slave.agent_aid)
message.set_message_id()
message.set_conversation_id(str(uuid1()))
message.set_content(json.dumps(content))
message.set_datetime_now()
return pickle.dumps(message)
