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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 create_shield_layer(shield, hashcode):
 """Creates the layer for shields."""

    return pgnreader.parse_pagan_file(('%s%spgn%s' % (PACKAGE_DIR, os.sep, os.sep)) + shield + '.pgn', hashcode, sym=False, invert=False)