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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 is_larger(unit_1, unit_2):
 """Returns a boolean indicating whether unit_1 is larger than unit_2. E.g: True False """

    unit_1 = functions.value_for_key(INFORMATION_UNITS, unit_1)
    unit_2 = functions.value_for_key(INFORMATION_UNITS, unit_2)

    return ureg.parse_expression(unit_1) > ureg.parse_expression(unit_2)