How to use fonts from u8g2_fonts.c ?

[zhum]

I use LILYGOTTGO 1,54-inch wrist e-paper.
I try to use some fonts from u8g2_fonts.c, but I don't know how to do this. I added

#include <u8g2_fonts.h>

to the beginning of my source and

display.setFont(u8g2_font_unifont_t_cyrillic);

to the setup, but I get the error

'u8g2_font_unifont_t_cyrillic' was not declared in this scope

[Micky]

I don't know if the font format of U8G2 is consistent with that of GXEPD. It is recommended that you refer to the font modification of GXEPD, which indicates that it is a subclass of Adafruit_GFX.
Link: https://github.com/ZinggJM/GxEPD