I need to fetch multiple cursors from pg functions in Nodejs.

I have tried both kinds of function writing methods in PG as said in below link: http://www.sqlines.com/postgresql/how-to/return_result_set_from_stored_procedure

In PG Admin||| query tool i can able to view the output for multiple cursors by giving the name of it. I want to fetch the same from node js application, I'm using "pg-promise".

Option-1

 db.func('get_data',
    [
        name,
        key
    ])
    .then(dbResult => {
        console.log(" RES 1" + dbResult);               
    }).catch(error => {
        console.log(error);
        throw error;
    });

Option-2

var retCursor1 = {};
var retCursor2 = {};
db.func('get_data',
    [
        name,
        key,
        retCursor1,
        retCursor2,
    ])
    .then(dbResult => {
        console.log(" RES 1" + dbResult);               
        console.log(" RES 2" + retCursor1);               
        console.log(" RES 3" + retCursor2);               
    }).catch(error => {
        console.log(error);
        throw error;
    });

get_data PG Fucntion will return 2 refCursors.

But No luck, can someone suggest what is the best way to fetch multiple cursor in Node js.