def stb2text(self, stb):
        return ''.join(stb)


#----------------------------------------------------------------------------
# module testing (minimal)
:see: AbstractExpression.get_refs()
dataset/ETHPy150Open ipython/ipython-py3k/IPython/core/ultratb.py/SyntaxTB.stb2text--crossover with--dataset/ETHPy150Open nltk/nltk/nltk/sem/drt.py/DrtAbstractVariableExpression.get_refs