code: def rsem_multimapping_plot(self):
          
  
          pconfig = {
              'id': 'rsem_multimapping_rates',
              'title': 'RSEM: Multimapping Rates',
              'ylab': 'Counts',
              'xlab': 'Number of alignments',
              'xDecimals': False,
              'ymin': 0,
              'tt_label': '<b>{point.x} alignments</b>: {point.y:.0f}',
          }
  
          self.add_section(
              name = 'Multimapping rates',
              anchor = 'rsem_multimapping',
              description = 'A frequency histogram showing how many reads were aligned to `n` reference regions.',
              helptext = '''In an ideal world, every sequence reads would align uniquely to a single location in the
                  reference. However, due to factors such as repeititve sequences, short reads and sequencing errors,
                  reads can be align to the reference 0, 1 or more times. This plot shows the frequency of each factor
                  of multimapping. Good samples should have the majority of reads aligning once.''',
              plot = linegraph.plot(self.rsem_multimapping_data, pconfig)
          )
docs: Make a line plot showing the multimapping levels