code: def setup_formatters(self, *args):
          
          formatters = []
          col_offset = 0
          # initialize formatters for row-id, timestamp and time-diff columns
          if self.rownum:
              formatters.append(fmt.RowNumberFormatter.setup(0))
              col_offset += 1
          if self.timestamp:
              formatters.append(fmt.DatetimeFormatter.setup(
                  datetime.datetime.now(),
                  fmt='{:%Y-%m-%d %H:%M:%S.%f}'.format,
                  col_width=26))
              col_offset += 1
          if self.time_diff:
              formatters.append(fmt.TimeDeltaFormatter.setup(0))
              col_offset += 1
  
          # initialize formatters for user-defined columns
          for coli, value in enumerate(args):
              fmt_class = type2fmt.get(type(value), fmt.GenericFormatter)
              kwargs = {}
  
              # set column width
              if self.default_colwidth is not None:
                  kwargs['col_width'] = self.default_colwidth
              if coli in self.column_widths:
                  kwargs['col_width'] = self.column_widths[coli]
              elif self.columns and self.columns[coli + col_offset] in self.column_widths:
                  kwargs['col_width'] = self.column_widths[self.columns[coli + col_offset]]
  
              # set formatter function
              if fmt_class == fmt.FloatFormatter and self.float_format is not None:
                  kwargs['fmt'] = self.float_format
              if coli in self.column_formatters:
                  kwargs['fmt'] = self.column_formatters[coli]
              elif self.columns and self.columns[coli + col_offset] in self.column_formatters:
                  kwargs['fmt'] = self.column_formatters[self.columns[coli + col_offset]]
  
              formatter = fmt_class.setup(value, **kwargs)
              formatters.append(formatter)
  
          self.formatters = formatters
docs: Setup formatters by observing the first row.
          
          Args:
              *args: row cells