ImagePicker is not working

How to / Third Party Tooling
1

at first it worked but after refreshed it throwed error:- Please attach a method to this component

const imagePicker = async () => {
   const permissionResult = await ImagePicker.requestMediaLibraryPermissionsAsync(
      { mediaType: ImagePicker.MediaTypeOptions.Images, quality: 10 }
    );

    if (permissionResult.granted === false) {
      alert("Permission to access gallery is required!");
      return;
    }
    const pickerResult = await ImagePicker.launchImageLibraryAsync();

    if (pickerResult.cancelled === true) {
      return;
    }
    setImage({ localUri: pickerResult.uri });
  };