path: "tensorflow.ConfigProto.Experimental"
tf_proto {
  descriptor {
    name: "Experimental"
    field {
      name: "collective_group_leader"
      number: 1
      label: LABEL_OPTIONAL
      type: TYPE_STRING
    }
    field {
      name: "executor_type"
      number: 3
      label: LABEL_OPTIONAL
      type: TYPE_STRING
    }
    reserved_range {
      start: 2
      end: 3
    }
  }
}