Program Code is Uncountable

There are some words in English that are uncountable. For example: "fish", "sheep", "bread", etc. When we want to speak of many of those things, we do not say "fishes", "sheeps", or "breads"; we still use the singular form: "I caught lots of fish", "Please count the sheep", "Do not eat too much bread", etc.

Hyrum's Law

With a sufficient number of users of an API,
it does not matter what you promise in the contract:
all observable behaviors of your system
will be depended on by somebody.

Hyrum's Law

(From https://www.hyrumslaw.com/)