anchor.diff:    memberIds: [ID]
     acceptContributions: Boolean
     eventInviteeIds: [ID]
  -  startTime: String
  -  endTime: String
  +  startTime: Date
  +  endTime: Date
   }
   
   input CommentInput {
  
positive.code:   topics: [SavedSearchTopic]
    postTypes: [String]
    newPosts: [Post]
    createdAt: String
  }
  
  type SavedSearchTopic {
  
negative.code: }
  
  input PointInput {
    lat: Float
    lng: Float
  }
  
  input MembershipInput {
  