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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def create_html(s1, s2, output='test.html'):
    ''' creates basic html based on the diff of 2 strings '''
    html = difflib.HtmlDiff().make_file(s1.split(), s2.split())
    with open(output, 'w') as f:
        f.write(html)