createContext() function is defined with the FetchCreateContextFnOptions parameter signature, how do you fill that information out when using server side api calls, for example via createCaller? The example in the docs is inaccurate in that it defines a createContext function to require some parameters:<RootLayout /> is defined, I need to fetch the current user to pass it along to react components. I have a getUser() procedure for this. Do I use the client side api defined with createTRPCReact to call the procedure? or can I use the server side api created with a createCaller since I assume the root layout will be rendered on the server side?