def starter_node_func(starter):
    """Pass a dummy string through to provide a basic function for the first
    Nipype workflow node.

    - This is used for a Nipype utility function node to serve as a starting
      node to connect to multiple unrelated Nipype workflows. Each of these
      workflows runs QAP for one participant in the current bundle being run.
    - Connecting the multiple non-interdependent participant workflows as
      one workflow allows the Nipype resource scheduler to maximize
      performance.

    :type starter: str
    :param starter: A dummy string.
    :rtype: str
    :return: The same string.
    """
    return starter