Override the type of the returned data field in the response.
const { data } = await supabase
  .from('countries')
  .select()
  .overrideTypes<Array<MyType>, { merge: false }>()
const { data } = await supabase
  .from('countries')
  .select()
  .maybeSingle()
  .overrideTypes<MyType, { merge: false }>()
const { data } = await supabase
  .from('countries')
  .select()
  .overrideTypes<Array<{ status: "A" | "B" }>>()
const { data } = await supabase
  .from('countries')
  .select()
  .maybeSingle()
  .overrideTypes<{ status: "A" | "B" }>()