code: def init_poolmanager(self, connections, maxsize,
                           block=requests.adapters.DEFAULT_POOLBLOCK,
                           **pool_kwargs):
          
          context = create_urllib3_context(ciphers=self.CIPHERS,
                                           ssl_version=ssl.PROTOCOL_TLSv1)
          pool_kwargs['ssl_context'] = context
          return super(TLSv1Adapter, self).init_poolmanager(connections, maxsize,
                                                            block, **pool_kwargs)
docs: Initialize poolmanager with cipher and Tlsv1