Problems with binds[] array when emitting signal (Mono)

[xfactor2000]

Godot version: 3.0 stable

OS/device including version:
Manjaro Linux 64 bit (rolling release,so no version is available)

Issue description:
Facing multiple issues when trying to pass parameters from pressed signal (probably other signals as well) using object[] binds

Steps to reproduce:

Please see attached project for full description, to sum it up:
when doing
b1.Connect("pressed",this,"_on_Button_pressed",new object[]{1,2});
I get compiler error Method Not Found (when button is clicked)

when doing
b2.Connect("pressed",this,"_on_Button_pressed",new object[]{1});
No error is raised, but binds[] array in the function is empty

The only workaround is to wrap the array in another array:
b3.Connect("pressed",this,"_on_Button_pressed",new object[]{new object[]{1,2}});

Seems like a bug to me

Minimal reproduction project:
Binds bug.zip

[KellyThomas]

@xfactor2000
I am finding success with this approach:

    public override void _Ready()
    {
        b1 = GetNode("Button1") as Button;
        b1.Connect("pressed", this, "_on_Button_pressed", new object[]{1, 2});
    }

    private void _on_Button_pressed(int p1, int p2)
    {
        GD.Print($"Params: {p1}, {p2}");
        // prints: Params: 1, 2
    }

[xfactor2000]

@KellyThomas you are right. I think more docs should be added on the matter, right now they're scarce.