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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 versioned_workdir(self):
 """The Task.workdir suffixed with a fingerprint of the Task implementation version. When choosing whether to store values directly in `self.workdir` or below it in the directory returned by this property, you should generally prefer this value. :API: public """

    versioned_workdir = os.path.join(self.workdir, self.implementation_version_slug())
    safe_mkdir(versioned_workdir)
    return versioned_workdir