The library has been published in PlatformIO library registry
In order to use it with your program, simply add IoTeX-blockchain-client to the lib_deps of your platformio.ini and include the main header file #include "IoTeX-blockchain-client.h" in your sketch
You can check the examples for more information
Note: Due to a bug in PlatformIO, dependencies inlibrary.jsonare not detected unless they are also provided in platformio.ini. For Nano33 or other SAMD boards, the WiFiNINAand FlashStoragelibraries also need to be added to your lib_deps