def METHOD_NAME(server=None, username=None, password=None):
    """
    Returns the credentials merged with the config data (opts + pillar).
    """
    jira_cfg = __salt__["config.merge"]("jira", default={})
    if not server:
        server = jira_cfg.get("server")
    if not username:
        username = jira_cfg.get("username")
    if not password:
        password = jira_cfg.get("password")
    return server, username, password