type: "nn"
layers {
  name: "a"
  type: "data"
  size: 10
  active_type: ""
}
layers {
  name: "b"
  type: "data"
  size: 10
  active_type: ""
}
layers {
  name: "__addto_0__"
  type: "addto"
  size: 10
  active_type: ""
  inputs {
    input_layer_name: "a"
  }
  inputs {
    input_layer_name: "b"
  }
}
layers {
  name: "__concat_0__"
  type: "concat"
  size: 20
  active_type: ""
  inputs {
    input_layer_name: "a"
  }
  inputs {
    input_layer_name: "b"
  }
}
layers {
  name: "__concat_1__"
  type: "concat2"
  size: 20
  active_type: ""
  inputs {
    input_layer_name: "a"
    proj_conf {
      type: "identity"
      name: "___concat_1__.w0"
      input_size: 10
      output_size: 10
    }
  }
  inputs {
    input_layer_name: "b"
    proj_conf {
      type: "identity"
      name: "___concat_1__.w1"
      input_size: 10
      output_size: 10
    }
  }
}
input_layer_names: "a"
input_layer_names: "b"
output_layer_names: "__addto_0__"
output_layer_names: "__concat_0__"
output_layer_names: "__concat_1__"
sub_models {
  name: "root"
  layer_names: "a"
  layer_names: "b"
  layer_names: "__addto_0__"
  layer_names: "__concat_0__"
  layer_names: "__concat_1__"
  input_layer_names: "a"
  input_layer_names: "b"
  output_layer_names: "__addto_0__"
  output_layer_names: "__concat_0__"
  output_layer_names: "__concat_1__"
  is_recurrent_layer_group: false
}