Are tube flies considered legal in fly fishing only waters? (Assuming weight of the assembly is within limits and the hook gap is also within limits.)

I can't find any reference on the subject beyond the definition of an artificial fly in the regs. The wording of the regulation definition would suggest that a tube fly would be considered an attractor above a bare hook. Would the eye of the hook being held by junction tubing make it a fly within the legal definition? :question: