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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 tables(subjects=None, pastDays=None, include_inactive=False, lang=DEFAULT_LANGUAGE):
 """Find tables placed under given subjects. """

    request = Request('tables',
                      subjects=subjects,
                      pastDays=pastDays,
                      includeInactive=include_inactive,
                      lang=lang)

    return (Table(table, lang=lang) for table in request.json)