                  sorted_lines.append([key, title])
  
          groupsize = self.lines_groupsize(raw_lines, sorted_lines)
          sorted_lines = raw_lines + sorted_lines
          lines = self.lines_style(sorted_lines, groupsize)
          return lines
  
      @staticmethod
      def lines_groupsize(raw_lines, sorted_lines):
          """ Get the number of items in each group.
 
</s> remove         groupsize = self.lines_groupsize(raw_lines, sorted_lines)
 </s> add         groupsize = self._lines_groupsize(raw_lines, sorted_lines) </s> remove     def lines_groupsize(raw_lines, sorted_lines):
 </s> add     def _lines_groupsize(raw_lines: List[str], sorted_lines: List[str]) -> int: </s> remove             If raw data isn't selected, then check the length of
            remaining groups until something is found """
 </s> add         If raw data isn't selected, then check the length of remaining groups until something is
        found.

        Parameters
        ----------
        raw_lines: list
            The list of keys for the raw data points
        sorted_lines:
            The list of sorted line keys to display on the graph

        Returns
        -------
        int
            The size of each group that exist within the data set.
        """ </s> remove     def lines_style(self, lines, groupsize):
        """ Set the color map and line width for each group """
 </s> add     def _lines_style(self,
                     lines: List[str],
                     groupsize: int) -> List[List[Union[str, int, Tuple[float]]]]:
        """ Obtain the color map and line width for each group.

        Parameters
        ----------
        lines: list
            The list of sorted line keys to display on the graph
        groupsize: int
            The size of each group to display in the graph

        Returns
        -------
        list
            A list of loss keys with their corresponding line formatting and color information
        """ </s> remove         raw_lines = list()
        sorted_lines = list()
 </s> add         raw_lines = []
        sorted_lines = []
        lines = self._lines_style(sorted_lines, groupsize)
                  sorted_lines.append([key, title])
  
          groupsize = self.lines_groupsize(raw_lines, sorted_lines)
          sorted_lines = raw_lines + sorted_lines
        lines = self._lines_style(sorted_lines, groupsize)
          return lines
  
      @staticmethod
      def lines_groupsize(raw_lines, sorted_lines):
          """ Get the number of items in each group.
keep keep keep keep replace keep keep keep keep keep
 Update matplotlib requirement
  - bump min requirement to 3.5.1
  - Fix custom toolbar for v3.5.1
  - Documentation + linting 
lib/gui/display_graph.py