

def _dummy(name, token, expr, **kwargs):
    '\n    Return a dummy. This will return the same dummy if the same token+name is\n    requested more than once, and it is not already in expr.\n    This is for being cache-friendly.\n    '
    d = _dummy_(name, d, **kwargs)
    if (d in expr.free_symbols):
        return Dummy(name, **kwargs)
    return d

dataset/ETHPy150Open sympy/sympy/sympy/integrals/meijerint.py _dummy/VarMisuse@25/104 `token`->`d`