type M2MPost @model {
  id: ID!
  title: String!
  editors: [M2MPostEditor] @connection(keyName: "byPost", fields: ["id"])
}


type M2MPostEditor
  @model(queries: null)
  @key(name: "byPost", fields: ["postID", "editorID"])
  @key(name: "byEditor", fields: ["editorID", "postID"]) {
  id: ID!
  postID: ID!
  editorID: ID!
  post: M2MPost! @connection(fields: ["postID"])
  editor: M2MUser! @connection(fields: ["editorID"])
}

type M2MUser @model {
  id: ID!
  username: String!
  posts: [M2MPostEditor] @connection(keyName: "byEditor", fields: ["id"])
}