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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def connectcomponents(idf, components, fluid=None):
 """rename nodes so that the components get connected fluid is only needed if there are air and water nodes fluid is Air or Water or ''. if the fluid is Steam, use Water"""

    if fluid is None:
        fluid = ''
    if len(components) == 1:
        thiscomp, thiscompnode = components[0]
        initinletoutlet(idf, thiscomp, thiscompnode, force=False)
        outletnodename = getnodefieldname(thiscomp, "Outlet_Node_Name",
                                          fluid=fluid, startswith=thiscompnode)
        thiscomp[outletnodename] = [thiscomp[outletnodename],
                                    thiscomp[outletnodename]]
        # inletnodename = getnodefieldname(nextcomp, "Inlet_Node_Name", fluid)
        # nextcomp[inletnodename] = [nextcomp[inletnodename], betweennodename]
        return components
    for i in range(len(components) - 1):
        thiscomp, thiscompnode = components[i]
        nextcomp, nextcompnode = components[i + 1]
        initinletoutlet(idf, thiscomp, thiscompnode, force=False)
        initinletoutlet(idf, nextcomp, nextcompnode, force=False)
        betweennodename = "%s_%s_node" % (thiscomp.Name, nextcomp.Name)
        outletnodename = getnodefieldname(thiscomp, "Outlet_Node_Name",
                                          fluid=fluid, startswith=thiscompnode)
        thiscomp[outletnodename] = [thiscomp[outletnodename], betweennodename]
        inletnodename = getnodefieldname(nextcomp, "Inlet_Node_Name", fluid)
        nextcomp[inletnodename] = [nextcomp[inletnodename], betweennodename]
    return components