code: def shortcut_app_id(shortcut):
    
    algorithm = Crc(width = 32, poly = 0x04C11DB7, reflect_in = True, xor_in = 0xffffffff, reflect_out = True, xor_out = 0xffffffff)
    crc_input = ''.join([shortcut.exe,shortcut.name])
    high_32 = algorithm.bit_by_bit(crc_input) | 0x80000000
    full_64 = (high_32 << 32) | 0x02000000
    return str(full_64)
docs: Generates the app id for a given shortcut. Steam uses app ids as a unique
    identifier for games, but since shortcuts dont have a canonical serverside
    representation they need to be generated on the fly. The important part
    about this function is that it will generate the same app id as Steam does
    for a given shortcut