def get_agentids(os_code=None, customer_name=None, tag_id=None):
agentids=[]
agent_ids_for_tag_id= get_agent_ids_from_tag(tag_id=tag_id)
agent_ids_for_os_customer=get_all_agent_ids(agent_os=os_code,customer_name=customer_name)
agentids=list(set(agent_ids_for_tag_id + agent_ids_for_os_customer))
return(agentids)
