LT8900 lib quest

[Former user]

Dear! My project involves the exchange of data between Arduino UNO using XY modules (LT8920) I found the opportunity to use your library lt8900, but I don’t understand some thinks. Please, Help me! 1/Write me, please, the pin connection table (or schema) of Arduino Uno with the RF module. 2/ “voidsetCurrentControl(uint8_t power, uint8_t gain);”
What parameter values POWER and GANE are acceptable and what they affect when transmitting (receiving)? A lot of thanks for your reply!