code: def dot(src, **kw):
      
      cmd = "dot -T%s" % kw.pop('T', 'svg')
      for k, v in list(kw.items()):
          if v is True:
              cmd += " -%s" % k
          else:
              cmd += " -%s%s" % (k, v)
  
      return pipe(cmd, to_bytes(src))
docs: Execute the dot command to create an svg output.