def output_encoding(self, encoding):
assert encoding in ('<STR_LIT>','<STR_LIT>','<STR_LIT>'),'<STR_LIT>'%encoding<EOL>self['<STR_LIT>'] = encoding<EOL>return self<EOL>
Output encoding to use for QRCode encoding
Must be one of 'Shift_JIS','UTF-8', or 'ISO-8859-1'
APIPARAM: choe