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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 check_ups_input_frequency(the_session, the_helper, the_snmp_value):
 """ OID .1.3.6.1.2.1.33.1.3.3.1.2.1 MIB excerpt The present input frequency. """

    a_frequency = calc_frequency_from_snmpvalue(the_snmp_value)
    the_helper.add_metric(
        label=the_helper.options.type,
        value=a_frequency,
        uom='Hz')

    the_helper.set_summary("Input Frequency is {} Hz".format(a_frequency))