human
Solve the following python programming problem given the following code:
@ classmethod 
def makeImportExportTests(cls) : 
    def importExportFile(self, otherJobStore, size) : 
        self.master.partSize = cls.mpTestPartSize 
        (srcUrl, srcHash) = otherJobStore._getUrlForTestFile (size) 
        self.addCleanup (otherJobStore._cleanUpExternalStore, srcUrl) 
        jobStoreFileID = self.master.importFile (srcUrl) 
        self.assertEqual (self._hashJobStoreFileID (jobStoreFileID), srcHash) 
        dstUrl = otherJobStore._getUrlForTestFile () 
        self.addCleanup (otherJobStore._cleanUpExternalStore, dstUrl) 
        self.master.exportFile (jobStoreFileID, dstUrl) 
        self.assertEqual (self._hashJobStoreFileID (jobStoreFileID), otherJobStore._hashUrl (dstUrl)) 
jobStoreTestClasses = [FileJobStoreTest, AWSJobStoreTest, AzureJobStoreTest] 
    make_tests (<MASK>, targetClass = cls, otherJobStore = { jsCls.__name__ : jsCls for jsCls in jobStoreTestClasses }, size = dict (zero = 0, one = 1, oneMiB = (2 ** 20), partSizeMinusOne = (cls.mpTestPartSize - 1), partSize = cls.mpTestPartSize, partSizePlusOne = (cls.mpTestPartSize + 1))) 
    
    Given the code above, what is a proper replacement for <MASK>? Choose among: jobStoreTestClasses, jsCls, cls
assistant
#Here is a proper replacement for <MASK>.
def importExportFile(