code: def _loadmacros(self):
          
          macro_path = os.path.dirname(os.path.realpath(__file__))
          fd = os.open(macro_path + '/' + 'libname_gen.sas', os.O_RDONLY)
          code = b'options nosource;\n'
          code += os.read(fd, 32767)
          code += b'\noptions source;'
  
          self._io._asubmit(code.decode(), results='text')
          os.close(fd)
docs: Load the SAS macros at the start of the session
  
          :return: