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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 GetSavename(default=None, **kwargs):
 """Prompt the user for a filename to save as. This will raise a Zenity Save As Dialog. It will return the name to save a file as or None if the user hit cancel. default - The default name that should appear in the save as dialog. kwargs - Optional command line parameters for Zenity such as height, width, etc."""


    args = ['--save']
    if default:
        args.append('--filename=%s' % default)
    
    for generic_args in kwargs_helper(kwargs):
        args.append('--%s=%s' % generic_args)

    p = run_zenity('--file-selection', *args)

    if p.wait() == 0:
        return p.stdout.read().strip().split('|')