def import_corpus(corpusfilename, vocabfilename, context_type='document'):
    """
    Converts an lda-c compatible data file into a VSM Corpus object.

    :param corpusfilename: path to corpus file, as defined in lda-c
    documentation.
    :type string:

    :param vocabfilename: path to vocabulary file, one word per line
    :type string:
    """
    pass
