https://android.googlesource.com/platform/external/apache-log4cxx/+/bf7b5ebcf7ce58764c86ab8c6f00ea1791d64026/site/apidocs/classlog4cxx_1_1logstream__base.html
site/apidocs/classlog4cxx_1_1logstream__base.html - platform/external/apache-log4cxx - Git at Google