Cleanup mutate?

[patroza]

mutate variation should probably only get the function call and the wrap helper, not also fn, namespace, id etc.
to prevent unnecessary client.method.mutate.fn over client.method.fn

libs/packages/vue/src/makeClient.ts

Line 1399 in d0bc8e9

& { mutate: MutationWithExtensions<RT | RTHooks, typeof client[Key]> }