http://androidxref.com/8.0.0_r4/xref/frameworks/base/core/res/AndroidManifest.xml

http://androidxref.com/8.0.0_r4/xref/frameworks/base/wifi/java/android/net/wifi/WifiManager.java

 http://androidxref.com/8.1.0_r33/xref/frameworks/base/wifi/java/android/net/wifi/WifiManager.java

http://androidxref.com/9.0.0_r3/xref/frameworks/base/wifi/java/android/net/wifi/WifiManager.java

https://android.googlesource.com/platform/frameworks/base/+/refs/heads/android10-c2f2-release/wifi/java/android/net/wifi/WifiManager.java