Do i need to use different library in Arduino? - keyboard

Question

I was making an project and i need to use Arduino UNO as HID. So, i installed Keyboard library (version 1.0.4) from library manager and write just basic program in new sketch to test it:
#include <Keyboard.h>
void setup() {
// initialize the Keyboard library
Keyboard.begin();
}
void loop() {
Keyboard.press('A');
delay(1000);
Keyboard.release('A');
delay(1000);
}
I compiled it, but it gives me errors:
C:\Users\medic\AppData\Local\Temp\.arduinoIDE-unsaved202314-8852-isv7gn.mjro\sketch_feb4a\sketch_feb4a.ino: In function 'void setup()':
C:\Users\medic\AppData\Local\Temp\.arduinoIDE-unsaved202314-8852-isv7gn.mjro\sketch_feb4a\sketch_feb4a.ino:4:3: error: 'Keyboard' was not declared in this scope
Keyboard.begin();
^~~~~~~~
C:\Users\medic\AppData\Local\Temp\.arduinoIDE-unsaved202314-8852-isv7gn.mjro\sketch_feb4a\sketch_feb4a.ino: In function 'void loop()':
C:\Users\medic\AppData\Local\Temp\.arduinoIDE-unsaved202314-8852-isv7gn.mjro\sketch_feb4a\sketch_feb4a.ino:8:3: error: 'Keyboard' was not declared in this scope
Keyboard.press('A');
^~~~~~~~
exit status 1
Compilation error: 'Keyboard' not found. Does your sketch include the line '#include <Keyboard.h>'?
I was searching on the internet and find a solution to install other libraries. I installed other libraries from GitHub and some sites to try them, but it didn't work.