parameters: (self, widths_after)
docstring: Print an opening line at the top of the table.
          Needs to know the widths of the cells on the next table line.
docstring_summary: Print an opening line at the top of the table.
          Needs to know the widths of the cells on the next table line.
docstring_tokens: Print an opening line at the top of the table . Needs to know the widths of the cells on the next table line .
function: def start(self, widths_after):
          """
          Print an opening line at the top of the table.
          Needs to know the widths of the cells on the next table line.
          """
          
          self.horizontal('tl', 'tm', 'tr', 'h', widths_after)
function_tokens: def start ( self , widths_after ) : self . horizontal ( 'tl' , 'tm' , 'tr' , 'h' , widths_after )