def input_parameter_name(name, var_pos):
    """Generate parameter name for using as template input parameter names
    in Argo YAML.  For example, the parameter name "message" in the
    container template print-message in
    https://github.com/argoproj/argo/tree/master/examples#output-parameters.
    """
    return "para-%s-%s" % (name, var_pos)