how to convert to pure c++ code and how do i do classification prediction on my project? am new

[sls1005]

    nim cpp --compileOnly --nimcache:. file.nim
    
    
    Run

generates the C++ files in the current directory (suffixed with `.nim.cpp`). To 
compile them you'll need `nimbase.h` which can be found in the path where Nim's 
installed.