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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 _parse_trunk_allowed_vlans(self, config):
 """Scans the specified config and parse the trunk allowed vlans value Args: config (str):
 The interface configuration block to scan Returns: dict: A Python dict object with the value of switchport trunk allowed vlans value. The dict returned is intended to be merged into the resource dict """

        match = re.search(r'switchport trunk allowed vlan (.+)$', config, re.M)
        return dict(trunk_allowed_vlans=match.group(1))