class ActiveModelSerializers::Adapter::JsonApi

def self.fragment_cache(cached_hash, non_cached_hash, root = true)
  core_cached       = cached_hash.first
  core_non_cached   = non_cached_hash.first
  no_root_cache     = cached_hash.delete_if { |key, _value| key == core_cached[0] }
  no_root_non_cache = non_cached_hash.delete_if { |key, _value| key == core_non_cached[0] }
  cached_resource   = (core_cached[1]) ? core_cached[1].deep_merge(core_non_cached[1]) : core_non_cached[1]
  hash = root ? { root => cached_resource } : cached_resource
  hash.deep_merge no_root_non_cache.deep_merge no_root_cache
end