export interface MetaData {
    createdAt?: string;
    updatedAt?: string;
    subjectDate?: string;
    author?: string;
    source?: string;
    sourceUrl?: string;
    sourceApplication?: string;
    location?: string;
    altitude?: string;
    placeName?: string;
    contentClass?: string;
    applicationData?: string;
    linkToOriginal?: string;
    notebookName?: string;
    reminderTime?: string;
    reminderOrder?: string;
    reminderDoneTime?: string;
  }