How to use the capirca.lib.nacaddr.IP function in capirca

def GetIpParents(self, query):
    """Return network tokens that contain IP in query.

    Args:
      query: an ip string ('10.1.1.1') or nacaddr.IP object

    Returns:
      A sorted list of unique parent tokens.
    """
    base_parents = []
    recursive_parents = []
    # convert string to nacaddr, if arg is ipaddr then convert str() to nacaddr
    if (not isinstance(query, nacaddr.IPv4) and
        not isinstance(query, nacaddr.IPv6)):
      if query[:1].isdigit():
        query = nacaddr.IP(query)
    # Get parent token for an IP
    if isinstance(query, nacaddr.IPv4) or isinstance(query, nacaddr.IPv6):
      for token in self.networks:
        for item in self.networks[token].items:
          item = item.split('#')[0].strip()
          if not item[:1].isdigit():
            continue
          try:
            supernet = nacaddr.IP(item, strict=False)
            if supernet.supernet_of(query):
              base_parents.append(token)
          except ValueError:
            # item was not an IP
            pass
    # Get parent token for another token
    else:

base_parents = []
    recursive_parents = []
    # convert string to nacaddr, if arg is ipaddr then convert str() to nacaddr
    if (not isinstance(query, nacaddr.IPv4) and
        not isinstance(query, nacaddr.IPv6)):
      if query[:1].isdigit():
        query = nacaddr.IP(query)
    # Get parent token for an IP
    if isinstance(query, nacaddr.IPv4) or isinstance(query, nacaddr.IPv6):
      for token in self.networks:
        for item in self.networks[token].items:
          item = item.split('#')[0].strip()
          if not item[:1].isdigit():
            continue
          try:
            supernet = nacaddr.IP(item, strict=False)
            if supernet.supernet_of(query):
              base_parents.append(token)
          except ValueError:
            # item was not an IP
            pass
    # Get parent token for another token
    else:
      for token in self.networks:
        for item in self.networks[token].items:
          item = item.split('#')[0].strip()
          if item[:1].isalpha() and item == query:
            base_parents.append(token)
    # look for nested tokens
    for bp in base_parents:
      done = False
      for token in self.networks:

if term.expiration <= exp_info_date:
            logging.info('INFO: Term %s in policy %s>%s expires '
                         'in less than two weeks.', term.name, self.from_zone,
                         self.to_zone)
          if term.expiration <= current_date:
            logging.warn('WARNING: Term %s in policy %s>%s is expired.',
                         term.name, self.from_zone, self.to_zone)
            continue

        # SRX address books leverage network token names for IPs.
        # When excluding addresses, we lose those distinct names so we need
        # to create a new unique name based off the term name before excluding.
        if term.source_address_exclude:
          # If we have a naked source_exclude, we need something to exclude from
          if not term.source_address:
            term.source_address = [nacaddr.IP('0.0.0.0/0',
                                              term.name.upper(),
                                              term.name.upper())]
          # Use the term name as the token & parent_token
          new_src_parent_token = term.name.upper() + '_SRC_EXCLUDE'
          new_src_token = new_src_parent_token
          for i in term.source_address_exclude:
            term.source_address = nacaddr.RemoveAddressFromList(
                term.source_address, i)
            for j in term.source_address:
              j.token = new_src_token
              j.parent_token = new_src_parent_token

        if term.destination_address_exclude:
          if not term.destination_address:
            term.destination_address = [nacaddr.IP('0.0.0.0/0',
                                                   term.name.upper(),

# validate source address
    if src == 'any':
      self.src = src
    else:
      try:
        self.src = nacaddr.IP(src)
      except ValueError:
        raise AddressError('bad source address: %s\n' % src)

    # validate destination address
    if dst == 'any':
      self.dst = dst
    else:
      try:
        self.dst = nacaddr.IP(dst)
      except ValueError:
        raise AddressError('bad destination address: %s\n' % dst)

    if type(self.pol_obj) is not policy.Policy:
      raise BadPolicy('Policy object is not valid.')

    self.matches = []
    self.exact_matches = []
    for header, terms in self.pol_obj.filters:
      filtername = header.target[0].options[0]
      for term in terms:
        possible = []
        logging.debug('checking term: %s', term.name)
        if not self._AddrInside(self.src, term.source_address):
          logging.debug('srcaddr does not match')
          continue

def get_nets_and_highest_prefix(ip, net_group, db):
  """Find the highest prefix length in all networks given it contains the IP.

  Args:
    ip: the IP address contained in net_group
    net_group: the name of the network object we'll be looking through
    db: network and service definitions

  Returns:
    highest_prefix_length, networks as tuple
      highest_prefix_length : the longest prefix length found,
      networks : network objects
  """
  highest_prefix_length = 0
  networks = []
  ip = nacaddr.IP(ip)
  # loop through all the networks in the net_group
  for net in get_nets([net_group], db)[0][1]:
    # find the highest prefix length for the networks that contain the IP
    if ip in net:
      networks.append(str(net))
      if net.prefixlen > highest_prefix_length:
        highest_prefix_length = net.prefixlen
  return highest_prefix_length, networks

options: the options sent to the script
    db: network and service definitions

  Returns:
    meta, results :
      ((first object, second object, union of those two),
       diff of those two network objects)
  """
  t1, t2 = options.cmp
  d1 = db.GetNet(t1)
  d2 = db.GetNet(t2)
  union = list(set(d1 + d2))
  meta = (t1, t2, union)
  results = []
  for el in set(d1 + d2):
    el = nacaddr.IP(el)
    if el in d1 and el in d2:
      results.append(str(el))
    elif el in d1:
      results.append(str(el))
    elif el in d2:
      results.append(str(el))
  return meta, results

# validate source address
    if src == 'any':
      self.src = src
    else:
      try:
        self.src = nacaddr.IP(src)
      except ValueError:
        raise AddressError('bad source address: %s\n' % src)

    # validate destination address
    if dst == 'any':
      self.dst = dst
    else:
      try:
        self.dst = nacaddr.IP(dst)
      except ValueError:
        raise AddressError('bad destination address: %s\n' % dst)

    if type(self.pol_obj) is not policy.Policy:
      raise BadPolicy('Policy object is not valid.')

    self.matches = []
    self.exact_matches = []
    for header, terms in self.pol_obj.filters:
      filtername = header.target[0].options[0]
      for term in terms:
        possible = []
        logging.debug('checking term: %s', term.name)
        if not self._AddrInside(self.src, term.source_address):
          logging.debug('srcaddr does not match')
          continue