warning: 'deprecated' attribute directive ignored

[ilya7zz]

When using ESP8266, the compiler complains:

~/Documents/Arduino/libraries/PZEM-004T-v30-1.2.1/src/PZEM004Tv30.h:71:88: warning: 'deprecated' attribute directive ignored [-Wattributes]
     PZEM004Tv30(uint8_t receivePin, uint8_t transmitPin, uint8_t addr=PZEM_DEFAULT_ADDR);
                                                                                        ^
~/Documents/Arduino/libraries/PZEM-004T-v30-1.2.1/src/PZEM004Tv30.h:92:69: warning: 'deprecated' attribute directive ignored [-Wattributes]
     PZEM004Tv30(HardwareSerial* port, uint8_t addr=PZEM_DEFAULT_ADDR) : PZEM004Tv30(*port, addr) {};
                                                                     ^
In file included from ~/Documents/Arduino/libraries/PZEM-004T-v30-1.2.1/src/PZEM004Tv30.cpp:23:0:
~/Documents/Arduino/libraries/PZEM-004T-v30-1.2.1/src/PZEM004Tv30.h:71:88: warning: 'deprecated' attribute directive ignored [-Wattributes]
     PZEM004Tv30(uint8_t receivePin, uint8_t transmitPin, uint8_t addr=PZEM_DEFAULT_ADDR);
                                                                                        ^
~/Documents/Arduino/libraries/PZEM-004T-v30-1.2.1/src/PZEM004Tv30.h:92:69: warning: 'deprecated' attribute directive ignored [-Wattributes]
     PZEM004Tv30(HardwareSerial* port, uint8_t addr=PZEM_DEFAULT_ADDR) : PZEM004Tv30(*port, addr) {};
                                                                     ^

The code works, measurements are taken.
Is it possible to somehow fix this so that errors do not interfere with analyzing the work and do not cause confusion?

PS: I used "ModbusMaster.h" library before until I suddenly saw an overflow error due to the limitation of the uint16_t 65535 data type, which counted up to 6553.5 W (65.535 kWh) and started from zero :)
❤️ Your library is a lifesaver for me, thank you!

[ilya7zz]

Please help me fix these errors. 🙏
I am ready to help with testing if necessary!