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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 update_famplex():
 """Update all the CSV files that form the FamPlex resource."""

    famplex_url_pattern = \
        'https://raw.githubusercontent.com/sorgerlab/famplex/master/%s.csv'
    csv_names = ['entities', 'equivalences', 'gene_prefixes',
                 'grounding_map', 'relations']
    for csv_name in csv_names:
        url = famplex_url_pattern % csv_name
        save_from_http(url, os.path.join(path,'famplex/%s.csv' % csv_name))