def METHOD_NAME(astnode, variables={}, array=False):
    """ Evaluate MathML string with given set of variable and parameter values.
    :param astnode: astnode of MathML string
    :type astnode: libsbml.ASTNode
    :param variables: dictionary of var : value
    :type variables: dict
    :param parameters: dictionary of par : value
    :type parameters: dict
    :return: value of evaluated MathML
    :rtype: float
    """
    formula = evaluableMathML(astnode, variables=variables, array=array)
    print(formula)
    # return the evaluated formula
    return eval(formula)