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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 _make_gist(contents, description='', filename='data.geojson'):
 """ Create and return an anonymous gist with a single file and specified contents """

    ghapi = github3.GitHub()
    files = {filename: {'content': contents}}
    gist = ghapi.create_gist(description, files)

    return gist