Returns user specified temporary file location.
    The temporary location is specified through:

    >>> turicreate.config.set_runtime_config('TURI_CACHE_FILE_LOCATIONS', ...)

def _get_temp_file_location():
    '''
    Returns user specified temporary file location.
    The temporary location is specified through:

    >>> turicreate.config.set_runtime_config('TURI_CACHE_FILE_LOCATIONS', ...)

    '''
    from .._connect import main as _glconnect
    unity = _glconnect.get_unity()
    cache_dir = _convert_slashes(unity.get_current_cache_file_location())
    if not _os.path.exists(cache_dir):
        _os.makedirs(cache_dir)
    return cache_dir