type User {
      id: Int!
      email: String!
      name: String!
      updatedAt: String!
      createdAt: String!
  }
  type Session {
      token: String!
      user: User!
  }
  type Query {
      login(email: String!, password: String!): Session!
      myUserInfo: User!
  }
  type Mutation {
      register(email: String!, password: String!, name: String!): Session!
      changePassword(oldPassword: String!, newPassword: String!): Boolean!
  }