Can't invoke methods(click, hover, .. etc) from another script using IDE

Please, observe my example:

Script1.sikuli contents:

import Script2
Script2.runScript2()

Script2.sikuli contents:

def runScript2():
    print("Try to click")
    click("Screen Shot 2019-01-06 at 18.17.22.png")
    print("DONE")

I run Script1 and get console output:

Try to click
[error] script [ Script1 ] stopped with error in line 2
[error] NameError ( global name 'click' is not defined )

[error] --- Traceback --- error source first
line: module ( function ) statement
3: Script2 ( runScript2 ) click("Screen Shot 2019-01-06 at 18.17.22.png")
[error] --- Traceback --- end --------------

Why global name 'click' is not defined? Can you provide the right way how to run script from another script? Is it possible with IDE to do so? Thanks.