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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 get_forwarding_information_base(self, filter=''):
 """ Gets the forwarding information base data for a logical interconnect. A maximum of 100 entries is returned. Optional filtering criteria might be specified. Args: filter (list or str):
 Filtering criteria may be specified using supported attributes: interconnectUri, macAddress, internalVlan, externalVlan, and supported relation = (Equals). macAddress is 12 hexadecimal digits with a colon between each pair of digits (upper case or lower case). The default is no filter; all resources are returned. Returns: list: A set of interconnect MAC address entries. """

        uri = "{}{}".format(self.data["uri"], self.FORWARDING_INFORMATION_PATH)
        return self._helper.get_collection(uri, filter=filter)