100644 blob ef98885a477f70de705cfe54b3efa4521b8e8378	common.dart
040000 tree 797693f04e0aecf62e2033ddb037d215fa7049b9	extract_symbols_go
040000 tree b4dd054e86962fbbc8e1d2900de1d1ce381c6135	extract_symbols_java
040000 tree f11c6d2d1fb34d157dfb613418e9e9bbde6b808d	extract_symbols_python