<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_params(method, params):
 """Set params to query limesurvey"""

    data = {'method': method, 'params': params, 'id': str(uuid4())}
    return json.dumps(data)