How to use an export-variable to bind it to a child property (like a albedo_color of a mesh_instance) with C#

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:bust_in_silhouette: Asked By SiL3NC3

How to use an export-variables to bind it to a child property (like a albedo_color of a mesh_instance).

For example:

There is a player script attached to a root node with contains all the player meshes (and other objects as structured children.
In the player script I want to create an export_variable, with it I then can control the color of a mesh_instance for a child of the player node.

After a quick research I figured out, that the key could be “setget”, but there was no example available for C#.

I think this is easy to accomplish, but I’m having trouble to do this.
Any hints?