code: def get(self):
          
          parser = reqparse.RequestParser()
          parser.add_argument('public_key', type=parameters.valid_ed25519,
                              required=True)
          parser.add_argument('spent', type=parameters.valid_bool)
          args = parser.parse_args(strict=True)
  
          pool = current_app.config['bigchain_pool']
          with pool() as bigchain:
              outputs = bigchain.get_outputs_filtered(args['public_key'],
                                                      args['spent'])
              return [{'transaction_id': output.txid, 'output_index': output.output}
                      for output in outputs]
docs: API endpoint to retrieve a list of links to transaction
          outputs.
  
              Returns:
                  A :obj:`list` of :cls:`str` of links to outputs.