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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 ga4ghImportGlue():
 """ Call this method before importing a ga4gh module in the scripts dir. Otherwise, you will be using the installed package instead of the development package. Assumes a certain directory structure. """

    path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    sys.path.append(path)