code: def line_statuses(self, filename):
          
          line_elements = self._get_lines_by_filename(filename)
  
          lines_w_status = []
          for line in line_elements:
              lineno = int(line.attrib['number'])
              status = line.attrib['hits'] != '0'
              lines_w_status.append((lineno, status))
  
          return lines_w_status
docs: Return a list of tuples `(lineno, status)` of all the lines found in
          the Cobertura report for the given file `filename` where `lineno` is
          the line number and `status` is coverage status of the line which can
          be either `True` (line hit) or `False` (line miss).