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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 _GetUniqueFileShowNames(self, tvFileList):
 """ Return a list containing all unique show names from tvfile.TVFile object list. Parameters tvFileList : list List of tvfile.TVFile objects. Returns set The set of show names from the tvfile.TVFile list. """

    showNameList = [tvFile.fileInfo.showName for tvFile in tvFileList]
    return(set(showNameList))