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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 set_jinja2_silent_none(config):
 # pragma: no cover """ if variable is None print '' instead of 'None' """

    config.commit()
    jinja2_env = config.get_jinja2_environment()
    jinja2_env.finalize = _silent_none