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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def createBatchfile(keyparams=allparams):
 """Create the batchfile for our new key. :params dict keyparams: A dictionary of arguments for creating the key. It should probably be ``allparams``. :rtype: str :returns: A string containing the entire GnuPG batchfile. """

    useparams = {}
    for key, value in keyparams.items():
        if value:
            useparams.update({key: value})
    batchfile = gpg.gen_key_input(separate_keyring=True,
                                  save_batchfile=True,
                                  **useparams)
    log.info("Generated GnuPG batch file:\n%s" % batchfile)
    return batchfile