Documentation: server.send( )/ server.on() / server.arg()

It is not documented in :
https://arduino-esp8266.readthedocs.io/en/2.4.1/esp8266wifi/readme.html

server.send ()
server.on ()
server.arg ()
server.uri()

I have found it in examples:
https://techtutorialsx.com/2016/10/22/esp8266-webserver-getting-query-parameters/

doubt:
In soft-AP mode, server.send ()
Is it sent to all connected clients?