from FslBuildGen import IOUtil file_contents = IOUtil.ReadFileAsString("filename.txt")
from FslBuildGen import IsFile if IsFile("filename.txt"): print("File exists") else: print("File does not exist")In this code, IsFile checks if the file "filename.txt" exists and prints "File exists" if it does. These modules belong to the FslBuildGen package library, which is a build tool used for C++ projects.