lib/live_query/protocol/data_changed.ex
defmodule LiveQuery.Protocol.DataChanged do
@moduledoc """
Given to a callback when the data for a query changes.
"""
@enforce_keys [:query_key, :client_pid, :cb_key, :old_data, :new_data]
defstruct [:query_key, :client_pid, :cb_key, :old_data, :new_data]
end