How to use the urlextract.cachefile.CacheFile function in urlextract

import re
import string
import sys
import warnings
from collections import OrderedDict
from datetime import datetime, timedelta

import uritools

from urlextract.cachefile import CacheFileError, CacheFile

# version of URLExtract (do not forget to change it in setup.py as well)
__version__ = '0.14.0'


class URLExtract(CacheFile):
    """
    Class for finding and extracting URLs from given string.

    **Examples:**

    .. code-block:: python

        from urlextract import URLExtract

        extractor = URLExtract()
        urls = extractor.find_urls("Let's have URL example.com example.")
        print(urls) # prints: ['example.com']

        # Another way is to get a generator over found URLs in text:
        for url in extractor.gen_urls(example_text):
            print(url) # prints: ['example.com']