Можно ли использовать GoogleChromeLabs / critters для Laravel Mix 3.0? (критический CSS)

myfile = open("ideabank.txt", 'r+', encoding = 'utf-8')
    newidea = input("Which line you want to delete:")
    data = myfile.readlines()
    for i in range(0, len(data))
        if i != int(newidea):
           myfile.write(data[i])
           myfile.write("\n") 

myfile.close()