def curie(identifier) -> str:
    if (not identifier):
        return ''
    else:
        namespace: CurieNamespace
        identifier_object_id: str
        (namespace, identifier_object_id) = BiolinkNameSpace.parse_identifier(identifier)
        return namespace.curie(identifier_object_id)
def curie(identifier) -> str:
    if (not identifier):
        return 
    else:
        namespace: CurieNamespace
        identifier_object_id: str
        (namespace, identifier_object_id) = BiolinkNameSpace.parse_identifier(identifier)
        return namespace.curie(identifier_object_id)