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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 build_rrule_from_recurrences_rrule(rule):
 """ Build rrule dictionary for vRecur class from a django_recurrences rrule. django_recurrences is a popular implementation for recurrences in django. https://pypi.org/project/django-recurrence/ this is a shortcut to interface between recurrences and icalendar. """

    from recurrence import serialize
    line = serialize(rule)
    if line.startswith('RRULE:'):
        line = line[6:]
    return build_rrule_from_text(line)