[okhttp_312x]: https://github.com/square/okhttp/tree/okhttp_3.12.x
 [okio]: https://github.com/square/okio
 [post_example]: https://raw.github.com/square/okhttp/master/samples/guide/src/main/java/okhttp3/guide/PostExample.java
 [r8_proguard]: https://square.github.io/okhttp/features/r8_proguard/
 [recipes]: https://square.github.io/okhttp/recipes/
 [snap]: https://s01.oss.sonatype.org/content/repositories/snapshots/