How to invoke a function from another node script?

Question

I'm trying to invoke a function from one node into another

Node1_script:

extends Position2D

func sample():
    print('well you invoked me, now what?')

Node2_script:

tool
...


func some_function():
    print($"Node1".sample());

but it gives the error:

Invalid call. Nonexistent function 'sample'

Answer 1

Ah I got the problem, it was in tool mode

for future reference, if you want to invoke a function in tool mode you have to make sure the function definition is also in tool mode:

Node1_script:

extends Position2D
tool

func sample():
    print('well you invoked me, now what?')
    

Node2_script:

tool
...


func some_function():
    print($"Node1".sample());