[SD Python] Graph Parameter Editing and Property Binding

Wondering if someone can point me in a direction. I'm used to PySBS, but need to understand how the SD python API handles a couple of things.

I've created some node instances, outputs, and graph parameter (inputs) via the API.

However, I need to set the graph parameter to Vec4 type (but not the default slider variant, I need to set to a color variant, and potentially change color specific settings [sRGB, float, etc]).
I also need to bind that parameter to a uniform color's Output Color parameter.

Thanks!