def METHOD_NAME(clusterEvalMode):
    """
      Defines nodes object specifically for setting clusterEvalMode
      @ In, clusterEvalMode, string, 'full' or 'clustered'
      @ Out, nodes, list, list of xml nodes for setting pickleROM parameters
    """
    #NOTE this kind of node definition should apply to any ROM parameter changes for this method
    # as long as the parameter being set with the xml node exists in the pickleROM object
    # Importing xml node tool
    from ravenframework.utils import xmlUtils
    nodes = []
    node = xmlUtils.newNode('loadedROM', attrib={'name': 'ROM', 'subType': 'pickledROM'})
    node.append(xmlUtils.newNode('clusterEvalMode', text=clusterEvalMode))
    nodes.append(node)
    return nodes