code: def dumps(self):
          r
  
          content = self.dumps_content()
  
          if not content.strip() and self.omit_if_empty:
              return ''
  
          string = ''
  
          start = Command(self.latex_name, arguments=self.arguments,
                          options=self.options)
  
          string += start.dumps() + '{ \n'
  
          if content != '':
              string += content + '\n}'
          else:
              string += '}'
  
          return string
docs: r"""Convert the container to a string in latex syntax.