Need to query flow context sys_id

[Bird1]

Hello,

I would like to query the flow context's sys_id on one of record producer. I tried with below script.

var flow = new GlideRecord('sys_flow_context');
flow.addQuery("source_record", "349dff2d1b0f591037e598aebd4bcbcf");

flow.query();
gs.info(flow.sys_id);

But the result I got is 

*** Script: undefined

Can anyone help to advise? 

[Ankur Bawiskar · Accepted solution]

@Bird1 

you should use next() function to print

var flow = new GlideRecord('sys_flow_context');
flow.addQuery("source_record", "349dff2d1b0f591037e598aebd4bcbcf");

flow.query();

flow.next();
gs.info(flow.sys_id);