Execute selenium script with parameters

I have a selenium script that needs to be called from Neoload and that script needs 4 string parameters as input. Is there a way to call a Java method from Neoload javascript file by passing the parameters.

When I tried to call the method directly I'm getting below error.
Error: TypeError: Cannot call property downloadReports in object [JavaPackage appDynamics.RunAppDynamics]. It is not a function, it is "object". (Script=script;Line=2)