title: error: attempt to call function 'is_colliding' in base 'null instance' on a null instance
body: <p>I've just started making a basic fps in the Godot engine, and I'm currently stuck on making a basic Raycast weapon. I've looked up tutorials from Coding With Tom, Gabaj YT, and multiple others, and yet no matter which one, I always end up writing the same piece of code:</p>
  <p>if Raycast.is_Colliding:</p>
  <p>and no matter how exactly I copy it down, I always end up with the same error:</p>
  <p>error: attempt to call function 'is_colliding' in base 'null instance' on a null instance.</p>