****Helper class*****

component.set("v.searching", true);
    var action = component.get("c.runCompanySearch");
    // Mark the action as abortable, this is to prevent multiple events from the keyup executing
    action.setAbortable();
    action.setParams({
        "siteID": component.get("v.siteID"),
        "searchString": component.get("v.searchString")
    });
    action.setCallback(this, function(response) {
        var state = response.getState();
        if (component.isValid() && state == "SUCCESS") {
            component.set("v.searching", false);
            component.set("v.SECompanies", response.getReturnValue());
            **************Here I am accessing the variable********
            component.set("v.seColumns",seColumns);
            component.find("seTable").initialize({
                    "order":[0,"desc"]
                     });
            ******************************************************
            console.log(response.getReturnValue());
        } else if (state === "ERROR") { // Handle any error by reporting it
            var errors = response.getError();

            if (errors)  {
                if (errors[0] && errors[0].message)  {
                    this.displayToast('Error', errors[0].message);
                }
            } else {
                this.displayToast('Error', 'Unknown error.');
            }
        }
    });
    $A.enqueueAction(action);