rem: { var use_paper_array_from_printerfeatures = false;  try { use_paper_array_from_printerfeatures = gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".has_special_printerfeatures"); } catch (e) { }  if (use_paper_array_from_printerfeatures) { 
add: { if (isListOfPrinterFeaturesAvailable()) { 
context: function createPaperArray(){  var use_paper_array_from_printerfeatures = false;  try {    use_paper_array_from_printerfeatures = gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".has_special_printerfeatures");  }  catch (e) {  }    if (use_paper_array_from_printerfeatures) {    createPaperArrayFromPrinterFeatures();      }  else {    createPaperArrayFromDefaults();  }}
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