SPI AT commands reference

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Hi everyone!
I build esp-at with communication via SPI interface.
FAQ page for esp-at has SPI command example, but without detailed explanation. https://docs.espressif.com/projects/esp ... PI_AT.html
AT commands FAQ also has only UART AT examples. https://docs.espressif.com/projects/esp ... index.html

Does anyone know how i can convert UART AT command set to SPI AT command representation?
Or maybe anyone saw library to communicate with ESP32 over SPI?