def METHOD_NAME(self):
    self.compare(
        Expression(SymbolGamma, Symbol("Global`z")),
        sympy.gamma(sympy.Symbol("_Mathics_User_Global`z")),
    )
    self.compare(
        Expression(SymbolGamma, Symbol("Global`z"), Symbol("Global`x")),
        sympy.uppergamma(
            sympy.Symbol("_Mathics_User_Global`z"),
            sympy.Symbol("_Mathics_User_Global`x"),
        ),
    )