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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 check_namespace(namespace_id):
 """ Verify that a namespace ID is well-formed False False False True False False False False True """

    if type(namespace_id) not in [str, unicode]:
        return False

    if not is_namespace_valid(namespace_id):
        return False

    return True