Modify a variable that is passed to a function (like with pointers)

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1

Godot Version

v4.2.1.stable.mono.official [b09f793f5]

Question

I have two signals:

    [Signal] public delegate void DamageTakenEventHandler(AttackInfo info);
    [Signal] public delegate void StaminaConsumedEventHandler(float amount);

And I basically want functions connected to modify the value that is passed in, for example

float stam = 10f;
EmitSignal(SignalName.StaminaConsumed, stam); 
//function that receives the signal halves stam
GD.Print(stam); // stam is equal to 5

My first tought was to pass a pointer, but it seems that it isn’t possible in godot. Is there an alternative?