复制单个文件

SMHResponse? response;
try {
    response = await SMHAPIFileApis.copyFile(
        libraryId: libraryId,
        spaceId: spaceId,
        filePath: '00000/IMG_0001_copy.JPG',
        copyFrom: '00000/IMG_0001.JPG',
    );
} catch (e) {
    print(e);
}