Self-Documenting Calls & Models

When reviewing code, enforce two style rules:

1) Make complex calls self-documenting: prefer named arguments over positional parameters, and pass intent variables instead of literals when the value is logically derived.

await acquirer.StampPolicyTokenAsync(
    request,
    shouldAcquire: shouldAcquire,
    changeReference: changeReference,
    isWhatIf: false,
    debugMessages: null,
    tokenHttpClient: null,
    cancellationToken: cancelToken);

2) Keep models reusable and organized: don’t re-define model types that already exist elsewhere (especially when used by stacks/SDKs). Maintain clean structure by placing each class in its own file.

These changes improve readability, reduce breakage from signature changes, prevent duplication, and make the codebase easier to navigate and maintain.