code: def get_balance():
      
      balsq = ses.query(wm.Balance).filter(wm.Balance.user_id == current_user.id)
      if not balsq:
          return None
      bals = [json.loads(jsonify2(b, 'Balance')) for b in balsq]
      print "returning bals %s" % bals
      response = current_app.bitjws.create_response(bals)
      ses.close()
      return response
docs: Get the latest balance(s) for a single User.
      Currently no search parameters are supported. All balances returned.
      ---
      responses:
        '200':
          description: the User's balance(s)
          schema:
            items:
              $ref: '#/definitions/Balance'
            type: array
        default:
          description: unexpected error
          schema:
            $ref: '#/definitions/errorModel'
      security:
        - kid: []
        - typ: []
        - alg: []
      operationId: getBalance