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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 map_id(self,id, prefix, closure_list):
 """ Map identifiers based on an equivalence closure list. """

        prefixc = prefix + ':'
        ids = [eid for eid in closure_list if eid.startswith(prefixc)]
        # TODO: add option to fail if no mapping, or if >1 mapping
        if len(ids) == 0:
            # default to input
            return id
        return ids[0]