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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 getMdriztabPars(input):
 """ High-level function for getting the parameters from MDRIZTAB Used primarily for TEAL interface. """

    filelist,output,ivmlist,oldasndict=processFilenames(input,None)

    try:
        mdrizdict = mdzhandler.getMdriztabParameters(filelist)
    except KeyError:
        print('No MDRIZTAB found for "%s". Parameters remain unchanged.'%(filelist[0]))
        mdrizdict = {}

    return mdrizdict