tensorflow/core/ops/compat/ops_history_v1/TensorArrayConcatV3.pbtxt

op {
  name: "TensorArrayConcatV3"
  input_arg {
    name: "handle"
    type: DT_RESOURCE
  }
  input_arg {
    name: "flow_in"
    type: DT_FLOAT
  }
  output_arg {
    name: "value"
    type_attr: "dtype"
  }
  output_arg {
    name: "lengths"
    type: DT_INT64
  }
  attr {
    name: "dtype"
    type: "type"
  }
  attr {
    name: "element_shape_except0"
    type: "shape"
    default_value {
      shape {
        unknown_rank: true
      }
    }
  }
  is_stateful: true
}