sci2016-01-01.s1t01.akg391.kindrec.flac:1dc612c9b50318b9fbb5465887eb9ff4 sci2016-01-01.s1t02.akg391.kindrec.flac:8759c5f68028ce2b76a168b45aa72d0a sci2016-01-01.s1t03.akg391.kindrec.flac:fc2f75ded2cfb37de199643ccd3e774a sci2016-01-01.s1t04.akg391.kindrec.flac:f47b51d4dd2b0c03c52c2911eb6ca608 sci2016-01-01.s1t05.akg391.kindrec.flac:3744f057297340cb072daedf48dfda88 sci2016-01-01.s1t06.akg391.kindrec.flac:7c63347e610d60766b3e7fe3c5eaa6ad sci2016-01-01.s2t01.akg391.kindrec.flac:9b57a55fc285931678cc9362213ccd82 sci2016-01-01.s2t02.akg391.kindrec.flac:deefee6da77ef8d8528d341da3499a11 sci2016-01-01.s2t03.akg391.kindrec.flac:597e46ba71e9ed71d9d4a96f3db29d3e sci2016-01-01.s2t04.akg391.kindrec.flac:92ce000f5ddc527f6bb94576d9403898 sci2016-01-01.s2t05.akg391.kindrec.flac:e8f621d3eb4127185cf73ac7790716c5 sci2016-01-01.s2t06.akg391.kindrec.flac:32d7e94411c760c40151d8699c69b175 sci2016-01-01.s2t07.akg391.kindrec.flac:2347d7508767ceae61c332ebfff9bd9a sci2016-01-01.s2t08.akg391.kindrec.flac:18dad6e0fd2a4400c2666784f4b4790a sci2016-01-01.s2t09.akg391.kindrec.flac:cd0cca78fd50151b403e30ff90a30ae4 sci2016-01-01.s2t10.akg391.kindrec.flac:dba38b70554e9d25900a89d98fa16a98 App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned