code: def make_atari_networks(
      env_spec: specs.EnvironmentSpec,
  ) -> R2D2Networks:
      """Builds default R2D2 networks for Atari games."""
  
      def make_core_module() -> networks_lib.R2D2AtariNetwork:
          return networks_lib.R2D2AtariNetwork(
              env_spec.actions.num_values
          )
  
      return networks_lib.make_unrollable_network(
          env_spec, make_core_module
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: make_atari_networks(env_spec) and returns: networks_lib, networks_lib