type Conversation @model @auth(rules: [{allow: owner}]) {
  id: ID!
  name: String!
  user: String! @index(name: "conversationsByUser", queryField: "conversationsByUser", sortKeyFields: ["createdAt"])
  description: String
  createdAt: String!
  utterances: [Utterance] @hasMany(indexName: "byConversationId", fields: ["id"])
}

type Utterance @model @auth(rules: [{allow: owner}]) {
  id: ID!
  text: String!
  author: String!
  conversationId: ID! @index(name: "byConversationId", sortKeyFields: ["createdAt"])
  data: String
  createdAt: String!
}