consider an API param (or struct field) for a quantity of something. Please don't just call it 'quantity' or 'something_quantity'.
Always include the units in the name.
eg for data 'size_bytes', 'size_kb', 'size_mb', NEVER just 'size'; for time 'duration_secs', 'duration_ms', 'duration_ns', NEVER just 'duration'.
Don't make developers re-visit the API docs to understand it. Including units in the name makes semantics self-documenting when reading code and avoids many bugs
