No Placeholder Logic: This is a strict, non-negotiable rule. You are forbidden from generating code with placeholder implementations. Do not create functions or methods with empty bodies, a pass statement, or placeholder comments such as // TODO: Implement or /* Details to be added later */. Every function and method you write must contain a minimal, functional implementation that is immediately usable. If a function is expected to return a value, it must return a sensible default or a basic illustrative result.