code: def _initModuleList(self):
          
          if self.checkVersion('1.4'):
              cmd = "module show"
          else:
              cmd = "show modules"
          cmdresp = self.executeCommand(cmd)
          self._modules = set()
          for line in cmdresp.splitlines()[1:-1]:
              mobj = re.match('\s*(\S+)\s', line)
              if mobj:
                  self._modules.add(mobj.group(1).lower())
docs: Query Asterisk Manager Interface to initialize internal list of 
          loaded modules.
          
          CLI Command - core show modules