How to use the antd-mobile.Toast.offline function in antd-mobile

const checkStatus = response => {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }
  const errortext = codeMessage[response.status] || response.statusText;
  Toast.offline(`请求错误 ${response.status}: ${response.url},${errortext}`);
  const error = new Error(errortext);
  error.name = response.status;
  error.response = response;
  throw error;
};

    }).catch(() => { Toast.offline('网络异常，请稍后再试！') })
  }

const checkStatus = response => {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }
  const errortext = codeMessage[response.status] || response.statusText;
  Toast.offline(`请求错误 ${response.status}: ${response.url},${errortext}`);
  const error = new Error(errortext);
  error.name = response.status;
  error.response = response;
  throw error;
};

    }).catch(() => { Toast.offline('抱歉，网络错误，请稍后再试！') })
  }

window.addEventListener('sw.offline', () => {
  Toast.offline('当前处于离线状态');
});

    }).catch(() => { Toast.offline('抱歉，网络错误，请稍后再试。') })
  }

    }).catch(() => { Toast.offline('抱歉，网络错误，请稍后再试！') })
  }

    }).catch(() => { Toast.offline('网络异常，请稍后再试！') })
  }

popoverSelect=(options)=>{
        if(options.key==="1"){
            Toast.offline('听歌识曲功能未开放', 1);
        }else if(options.key==="2"){
            Toast.offline('扫一扫功能未开放', 1);
        }
        this.setState({
            popover:false
        });
    }
    render(){

          }).catch(() => { Toast.offline('抱歉，网络错误，请稍后再试！') })
        })