Invalid Call. Nonexistent Function

[cunning steppe]

I keep getting a nonexistent function error when trying to call set_base in my script. Attached are screenshots of the script and the script calling the function

[minor sonnet]

capitalization?

Ppanel.set_base(member) but var base : Member

not sure why it would return that error, if that was the issue though.
what sort of node is this script attached to? looks like a base Node, i though set_base was for node3D

[cunning steppe]

Member is a class, hence the captialization

set_base is a custom function I had made

For some reason, when instantiating a node, the node doesn't come with the script