const projectsQuery1 = api.example.getProjects.useInfiniteQuery(
    { cursor: 0 },
    {
      getNextPageParam: (lastPage) => lastPage.nextCursor,
      placeholderData: { pageParams: [undefined], pages: [{data: "someData", nextCursor: 10}]},
      onSuccess(data) {
        console.log(data.data); // infers the types from the placeholderData, but doesn't error
      },
    }
  );

  const projectsQuery2 = api.example.getProjects.useInfiniteQuery(
    { cursor: 0 },
    {
      // for some reason the infiniteQuery treats the placeholderData
      // as the source of truth for the types, so the next line gives
      // an error because nextCursor doesn't exist in null
      getNextPageParam: (lastPage) => lastPage.nextCursor,
      placeholderData: { pageParams: [undefined], pages: [null] },
      onSuccess(data) {
        console.log(data.data); // infers the types from placeholderData and errors
      },
    }
  );

  // but the normal useQuery doesn't
  const projectsQuery3 = api.example.getProjects.useQuery(
    { cursor: 0 },
    {
      placeholderData: null,
      onSuccess(data) {
        console.log(data); // infers the types normally from the router and doesn't error
      },
    }
  );