Std.App.Health.countOf

fn

This is a callable function.

What it does

A count the reading holds, or zero.

Declared comptime because a liveness judgement is, and a compile-time body

may only call compile-time functions — which is what makes that guarantee

transitive rather than a promise each function makes about itself.

Read the signature

• The text after the name is the type checked by Pudu.
• Read arrows from left to right: inputs come first, and the final type is returned.
• & borrows a value for this call instead of moving or copying it.