@checkIfClosed
    def voidEval(self, aString):
        self.eval(aString, void=True)
Signal that a new file has been started.
dataset/ETHPy150Open ralhei/pyRserve/pyRserve/rconn.py/RConnector.voidEval--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/core/files/uploadhandler.py/FileUploadHandler.new_file