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文件: trajectory_builder.h
#ifndef CARTOGRAPHER_MAPPING_TRAJECTORY_BUILDER_H_
#define CARTOGRAPHER_MAPPING_TRAJECTORY_BUILDER_H_
#include <functional>
#include <memory>
#include <string>
#include "cartographer/common/lua_parameter_dictionary.h"
#include "cartographer/common/make_unique.h"
#include "cartographer/common/port.h"
#include "cartographer/common/time.h"
#include "cartographer/mapping/proto/trajectory_builder_options.pb.h"
#include "cartographer/mapping/submaps.h"
#include "cartographer/sensor/data.h"
#