Resolvers not working for field schema definition

[pstachula-dev]

TS Error

Type '() => { id: string; email: string; name: string; password: string; posts: null; }' is not assignable to type '{ id: string; email: string; name: string | null; password: string; posts: { id: string; title: string; authorId: string; content: string | null; user: ... | null; }[] | null; }'.ts(2322)

Example code:
I took looks like callbacks are wrong argument for field schema

import { Elysia } from "elysia";
import { yoga } from "@elysiajs/graphql-yoga";

const typeDefs = /* GraphQL */ `
  type User {
    id: ID!
    email: String!
    name: String
    password: String!
    posts: [Post!]
  }

  type Post {
    id: ID!
    title: String!
    authorId: String!
    content: String
    user: User
  }
`;

export const graphqlYogaPlugin = new Elysia().use(
  yoga({
    typeDefs,
    resolvers: {
      Post: {
        user: () => {
          return {
            id: "1",
            email: "test",
            name: "test",
            password: "test",
            posts: null,
          };
        },
      },
    },
  })
);