docs: def to_tex(self, text_size='large', table_width=5, clear_pages = False):
          """
          Write the program information to a .tex file, which can be
          rendered to .pdf running pdflatex. The program can then be
          printed and brought to the gym.
  
          Parameters
          ----------
          text_size
              The tex text size, e.g. '\small', 'normalsize', 'large', 'Large'
              or 'LARGE'.
  
          table_width
              The table with of the .tex code.
  
          Returns
          -------
          string
              Program as tex.
          """
  
          # If rendered, find the length of the longest '6 x 75kg'-type string
          max_ex_scheme = 0
          if self._rendered:
              for (week, day, dynamic_ex) in self._yield_week_day_dynamic():
                  lengths = [len(s) for s in
                             self._rendered[week][day][dynamic_ex]['strings']]
                  max_ex_scheme = max(max_ex_scheme, max(lengths))
  
  
          env = self.jinja2_environment
          template = env.get_template(self.TEMPLATE_NAMES['tex'])
  
          return template.render(program=self, text_size=text_size,
                                 table_width=table_width, clear_pages = clear_pages)