text: import os
  c = get_config()
  c.NbConvertApp.export_format = 'pdf'
  c.TemplateExporter.template_path = ['.', os.path.normpath(r'../styles/')]
  c.PDFExporter.latex_command = ['pdflatex', '{filename}']
  c.Exporter.template_file = 'template'