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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_metadata(self, coll):
 """Retrieve the metadata associated with a collection :param str coll: The name of the collection to receive metadata for :return: The collections metadata if it exists :rtype: dict """

        #if coll == self.all_coll:
        #    coll = '*'

        metadata = {'coll': coll,
                    'type': 'replay'}

        if coll in self.warcserver.list_fixed_routes():
            metadata.update(self.warcserver.get_coll_config(coll))
        else:
            metadata.update(self.metadata_cache.load(coll))

        return metadata